UGC NET Paper 1: Held on 8th Dec 2023 Shift 1 (Previous Year Paper)

Calculation:

Percentage of boys in school E in 2019 = 75%

Difference between boys and girls = (75 - 25)% = 280 

⇒ 50% = 280 

⇒ 100% = 560

Total number of students from school E in 2019 = 560

Percentage of boys in school E in 2020 = 60%

Difference between boys and girls = (60 - 40)% = 136 

⇒ 20% = 136

⇒ 100% = 680

Total number of students from school E in 2020 = 680

Percentage of boys in school E in 2021 = 70%

Difference between boys and girls = (70 - 30)% = 264 

⇒ 40% = 264

⇒ 100% = 660

Total number of students from school E in 2021 = 660

Percentage of boys in school E in 2022 = 66%

Difference between boys and girls = (66 - 34)% = 224

⇒ 32% = 224

⇒ 100% = 700

Total number of students from school E in 2022 = 700

Sum of students from school E in all the years

⇒ 560 + 680 + 660 + 700 = 2600

∴ Average ⇒ 2600/4 = 650.

The correct answer is - Fallacy of Composition

Key Points

• Fallacy of Composition
• This fallacy occurs when it is assumed that what is true for a part is also true for the whole.
• In the given argument, the assumption is that if something is good for individual businesses, it must be good for the overall economy.
• However, individual benefits do not necessarily translate to collective benefits due to complex economic interactions.
• For example, practices that benefit specific businesses might lead to negative externalities that harm the general economy.

Additional Information

• Other Common Logical Fallacies
• Red Herring
• This fallacy occurs when irrelevant information is introduced to divert attention from the subject under discussion.
• It does not apply in this case as the argument does not introduce irrelevant information.
• Slippery Slope
• This fallacy involves arguing that a small first step will inevitably lead to a chain of related (negative) events.
• Not applicable here as the argument doesn't suggest a cascade of events.
• False Causes
• This occurs when a cause is incorrectly identified as the reason for a particular outcome.
• It does not apply here as the argument does not falsely identify causes and effects.

Calculation:

Percentage of boys in school B in 2020 = 48%

Difference between boys and girls ⇒ (52 - 48)% = 18

⇒ 4% = 18 

⇒ 100% = 450

So, total number of students from school B in 2020 = 450.

Percentage of boys in school B in 2022 = 60%

Difference between boys and girls ⇒ (60 - 40)% = 90

⇒ 20% = 90 

⇒ 100% = 450

So, Total number of students from school B in 2022 = 450.

∴ Required difference ⇒ 450 - 450 = 0.

Calculation:

Percentage of boys in school A = 60%

Difference between boys and girls ⇒ (60 - 40)% = 70 

⇒ 20% = 70 ⇒ 40% = 140

So, the number of girls in school A = 140.

Percentage of boys in school B = 48%

Difference between boys and girls ⇒ (52 - 48)% = 18

⇒ 4% = 18 ⇒ 52 % = 234.

So, the number of girls in school B = 234.

Percentage of boys in school C = 55%

Difference between boys and girls ⇒ (55 - 45)% = 24 

⇒ 10% = 24 ⇒ 45% = 108

So, the number of girls in school C = 108.

Percentage of boys in school D = 57%

Difference between boys and girls ⇒ (57 - 43)% = 84

⇒ 14% = 84 ⇒ 43% = 258

So, the number of girls in school D = 258.

Percentage of boys in school E = 60%

Difference between boys and girls ⇒ (60 - 40)% = 136

⇒ 20% = 136 ⇒ 40% = 272

So, the number of girls in school E = 272.

Percentage of boys in school F = 56%

Difference between boys and girls ⇒ (56 - 44)% = 96

⇒ 12% = 96 ⇒ 44% = 352

So, the number of girls in school F = 352.

Total number of girls ⇒ (140 + 234 + 108 + 258 + 272 + 352)  ⇒ 1364

∴ The total number of girls who appeared for examination in 2020 is 1364.

Calculation:

Percentage of boys in school C = 44%

Difference between boys and girls = (56 - 44)% = 60 

⇒ 12% = 60 

⇒ 100% = 500

So, total number of students from school C = 500.

Percentage of boys in school F = 44%

Difference between boys and girls = (56 - 44)% = 90

⇒ 12% = 90 

⇒ 100% = 750

So, total number of students from school F = 750.

∴ Required percentage ⇒ (750 - 500)/500 × 100 = 50%.

Calculation:

Percentage of boys in school C in 2019 = 44% 

Difference between boys and girls ⇒ (56 - 44)% = 60

⇒ 12% = 60 

⇒ 44% = 220

So, number of boys from school C in 2019 = 220.

Percentage of boys in school E in 2021 = 70%

Difference between boys and girls ⇒ (70 - 30)% = 264

⇒ 40% = 264 

⇒ 30% = 198

So, number of girls from school E in 2021 = 198.

∴ Required ratio ⇒ 220 : 198 = 10 : 9.

Key Points 

The Kyoto Protocol targeted several greenhouse gases for reduction, but it's important to know which gases were specifically included. Here's how they match up with the options provided:

• (A) Carbon dioxide (CO2) - Yes, CO2 is one of the primary greenhouse gases targeted by the Kyoto Protocol.
• (B) Methane (CH4) - Yes, CH4 is another significant greenhouse gas included in the Kyoto Protocol targets.
• (C) Nitrogen dioxide (NO2) - No, NO2 is not directly targeted by the Kyoto Protocol. It's worth noting that Nitrogen oxides are considered as a group in some contexts related to air pollution, but for the Kyoto Protocol, the focus is on nitrous oxide (N2O), not nitrogen dioxide (NO2).
• (D) Nitrous oxide (N2O) - Yes, N2O is included in the list of greenhouse gases targeted by the Kyoto Protocol.
• (E) Sulphur dioxide (SO2) - No, SO2 is not a greenhouse gas and is not targeted by the Kyoto Protocol. It is more commonly associated with acid rain and air pollution concerns.

 

Hence, the correct answer is: Only (A), (B) and (D)

Key Points Statement (I): Webex by Dell Technologies, is the leading enterprise solution for video conferencing, online meetings, screen share, and webinars.

• The claim is that "Webex by Dell Technologies, is the leading enterprise solution for video conferencing, online meetings, screen share, and webinars." This statement contains a factual inaccuracy regarding the ownership of Webex.
• Webex is a suite of communication and collaboration tools that includes video conferencing, online meetings, screen sharing, and webinars, but it is not "by Dell Technologies." Webex is a product developed and offered by Cisco Systems, a different multinational technology company known for its networking hardware, software, and telecommunications equipment. Therefore, the reference to Dell Technologies in association with Webex makes this statement incorrect.

Statement (II): GIF is an image file format and stands for Graphics Interactive Format.

• The claim here is that "GIF is an image file format and stands for Graphics Interactive Format." This statement is partially correct and partially incorrect.
• GIF indeed is an image file format but it stands for "Graphics Interchange Format," not "Graphics Interactive Format." The GIF format is widely used on the internet for its ability to support both animated and static images.
• It was introduced in the late 1980s and has been popular for creating simple animations, logos, and graphics with a limited color palette. The incorrect expansion of the GIF acronym makes this statement incorrect.

Calculation:

Ram can finish the work in 18 days.

Shyam is twice as efficient as Ram, so he can finish the same work in half the time, which is 9 days.

Let’s assume that the total work is 1 unit.

Therefore, Ram can complete 1/18^th of the work in a day, and Shyam can complete 1/9^th of the work in a day.

When they work together, their combined efficiency is the sum of their efficiencies,

⇒ 1/18 + 1/9 = 1/6^th 

Total work can be completed by both = 1/6 × 6 = 6 days.

∴ The correct answer is "6 days".

The correct response is Both Statement I and Statement II are correct.

Key PointsStatement I: India spends one of the lowest amounts per student for higher education in the world.

• This statement is true. India spends significantly less per student on higher education compared to many other countries, including developed nations.
• According to the World Bank, India's public spending on tertiary education per student was $5,591 in 2020, which is considerably lower than the global average of $12,625 and substantially lower than the OECD average of $18,189.

Statement II: The percentage expenditure on university and higher education in India was 0.77 percent in 1990 - 91 and it declined to 0.66 percent in 2004 - 2005.

• This statement is also true. Data from the World Bank confirms that the percentage expenditure on university and higher education in India declined from 0.77% in 1990-91 to 0.66% in 2004-05. This decrease in the share of GDP allocated to higher education highlights a potential underinvestment in the sector.
• Therefore, both statements accurately reflect aspects of India's higher education spending pattern. While the spending per student is low, it's important to acknowledge that there have been efforts to increase the total allocation to the sector,
• as evident in the recent Union Budget 2024 which saw a rise in the allocation for the Higher Education Department compared to the previous year. However, there's still a gap to fulfill the goals set out in the National Education Policy 2020, which aims for a 6% share of GDP dedicated to education$.

Key Points

• Psychology of time is the correct answer when people intend meanings in their communication, it could be interpreted more abstractly or metaphorically.
• The "psychology of time" likely refers to the cognitive and emotional aspects that affect how we perceive time, which in turn could influence communication.
• For example, how someone perceives and mentally processes past, present, and future can impact the message's intent and how it's received. This might relate to the time perspective influencing communication strategies, priorities, and understanding.
• However, this interpretation is more nuanced and less direct than conventional answers related to communication intent, such as semantics and pragmatics.
• The psychology of time, in this context, might emphasize the subjective experience of time as it influences the formation, delivery, and reception of intended meanings in interpersonal communication.

Therefore, in a broad, interpretative sense: 4) Psychology of time

Key Points 

• The factors related to learning that affect learning include the characteristics and conditions of the learner as well as external influences that can facilitate or hinder the learning process. Let's analyze the options given:
• (A) Learner's level of motivation to aspire and achievement - Motivation is a critical factor in learning as it drives the learner to engage and persist in learning activities.
• (B) Readiness and will power of the learner - Readiness refers to the learner's preparedness or maturity to learn new material, and willpower contributes to their persistence. Both are essential for effective learning.
• (C) Basic competence of the learner - This includes the foundational skills and knowledge that the learner brings to the learning process, which can facilitate or hinder new learning.
• (D) Physical and mental health of the learner - Good physical and mental health is essential for effective learning, as health issues can impair cognitive functions and motivation.
• (E) Personality characteristics and behavior of the teacher - The way a teacher interacts with the learners, their personality, and teaching methods can significantly influence the learning atmosphere and, subsequently, the learning outcomes.
• Given this analysis, the factors that directly relate to the learner and their learning process are (A), (B), (C), and (D). The personality and behavior of the teacher (E) also affect learning, but they do so more indirectly by influencing the learning environment rather than the learner's internal process. Based on the instructions for choosing options that are directly related to learning factors affecting learning:

The correct answer is 2) (A), (B), (C), and (D) only.

Calculation:

To calculate the total weight of all students, we need to multiply the number of students in each weight range by the midpoint of that range. The midpoint of each range is calculated as the average of the upper and lower limits of the range.

The midpoint of each range is as follows:

52 kg for the range 50 - 54 kg

56 kg for the range 54 - 58 kg

60 kg for the range 58 - 62 kg

64 kg for the range 62 - 66 kg

Therefore, the total weight of all students is:

⇒ { (52×8)+(56×10)+(60×25)+(64×17) } / 8+10+25+17​

⇒ (416 + 560 + 1500 + 1088) / 60 

⇒ 3564 / 60 

⇒ 59.4 kg

∴ The correct answer is "59.4 kg".

Key Points 

In research methodology, sampling methods are divided into two main types: probability sampling and non-probability sampling. Let's examine the options given:

• (a) Simple Random Sampling: This is a probability sampling method where each member of the population has an equal chance of being selected.
• (b) Fixed Quantity (Quota) Sampling: This is a non-probability sampling technique. Here, researchers select a sample that reflects the characteristics of the overall population, based on specific traits or quotas, but not every member has an equal chance of being selected.
• (c) Systematic Sampling: Although systematic sampling involves a systematic approach to selection (e.g., every nth element from a list), it is generally considered a form of probability sampling, as the first unit from which the sample is started is usually chosen at random.
• (d) Snowball Sampling: This is a non-probability sampling method often used in qualitative research. It involves existing study subjects recruiting future subjects from among their acquaintances. This method is particularly useful for reaching populations that are difficult to sample when researchers cannot use other sampling methods.:
• Simple random sampling (a) is a probability method.
• Fixed quantity (quota) sampling (b) and snowball sample (d) are non-probability methods.
• Therefore, the non-probability sampling methods from the provided options are:
• Fixed Quantity (Quota) Sampling (b)
• Snowball Sampling (d)

The correct answer is 4) Only (B) and (D).

The correct answer is: (A) and (B) Only

Key Points

• (A) This statement is true. Despite efforts to improve connectivity across India, some rural areas continue to face challenges with broadband access due to various factors like geographical hurdles, infrastructural limitations, and the cost of deployment.
• (B) This statement is also true. Unlike dial-up internet connections that required users to dial a phone number to connect to the internet and would occupy the phone line, broadband connections are always on. Once set up, there's no need to "dial-up" to access the internet, and the service remains continuously available.
• (C) This statement is false. One of the advantages of broadband Internet over dial-up is that it allows users to use the landline phone and the Internet simultaneously. This is because broadband usually uses different technology (like DSL, fiber optics, cable) that doesn't interfere with phone line usage.

The correct answer is - Both Statement I and Statement II are true

Key Points

• Both Statement I and Statement II are true
• Statement I uses an analogy (inference) to compare Swati's mind to a tree laden with fertile thoughts, suggesting it is full of creative ideas.
• Statement II also describes Swati's mind using the same metaphor, indicating it is descriptive in nature as it directly describes the quality of Swati's mind.
• This means both statements, despite their different syntactical forms, hold true in their intent and content.

Additional Information

• Analogy as Inference
• An analogy draws a comparison between two different things based on their similarities. In this context, comparing a mind to a tree suggests that both are sources of growth and productivity.
• Such inferences help in understanding complex ideas through simpler, familiar concepts.
• Descriptive Statements
• Descriptive statements provide a detailed account or explanation of characteristics. In Statement II, the metaphor is used to offer a clear depiction of Swati’s mind being rich in ideas.
• These statements are useful for precisely conveying qualities and attributes.

Key Points

• The University of Calcutta, founded in 1857, had affiliations with several colleges outside the territories that constitute today's India.
• This included Ceylon (now Sri Lanka), indicating the university's influence and reach during the British colonial period.

Hence the correct answer is Sri Lanka (Silon)

Key Points 

• Statement I is correct. Spearman's rho (ρ) is indeed typically used to measure the strength and direction of the relationship between two ordinal variables, or when the assumptions for Pearson's correlation (i.e., linearity and normality) are not met, even with interval or ratio data.
• Statement II is incorrect. Pearson's coefficient of correlation (r) is most effective when the relationship between two variables is linear. It measures the strength and direction of a linear relationship between two quantitative variables. If the relationship is curvilinear, Pearson's r may not accurately reflect the strength of the relationship. For curvilinear relationships, other statistical techniques are more appropriate to capture the nature of the association.

 

Hence, the most appropriate answer is: Statement I is correct but Statement II is incorrect.

Key Points

• According to the semiotic tradition, communication is considered an inter-subjective mediation of signs.
• This means that communication involves the exchange and interpretation of signs (words, images, gestures, etc.) between individuals, where the meaning is not fixed and inherent in the signs themselves but is constructed and understood through the shared, social interaction between people.
• The term "inter-subjective" highlights the notion that meaning is not merely a subjective (individual) or objective (universal) phenomenon but is situated in the space between subjects, or communicators.
• It emphasizes that meanings are negotiated and understood within the context of social relationships and shared cultural backgrounds. This understanding acknowledges that signs (such as language) have no intrinsic meaning but acquire significance through their use in human interaction and the mutual agreement or convention among users.
• So, in the context of the semiotic tradition, seeing communication as inter-subjective mediation reflects the idea that meaning is created and shared between individuals as they interpret and use signs in their interactions.
• This perspective is distinct from viewing communication as a mere transmission of messages or information from one mind to another or from one place to another. Instead, it is fundamentally about the creation, sharing, and negotiation of meaning through the social use of signs.

Key Points

• This classification is about the biological hierarchy of organisms from the most general category to the most specific. Let's go through the terms:
• Animals: This is the most general term in this context. All living beings that move, eat, and have senses fall under this kingdom. It's the broadest category mentioned here.
• Vertebrates: This group is a subset of animals. Vertebrates are animals that have a backbone or spinal column. This category includes a wide range of creatures, from fish to mammals, but it's a more specific group than all animals.
• Mammals: This is a more specific category within vertebrates. Mammals are warm-blooded vertebrates that have hair or fur and whose females produce milk for their young. This narrows down the creatures we're talking about even further.
• Bovines: This term specifically refers to a subgroup within mammals, including cattle, bison, African buffalo, the water buffalo, and yaks. It's more specific than just saying "mammals" because it points to a particular family within mammals.
• Cows: This is the most specific term in this list. A cow is a specific animal within the bovine category. Not all bovines are cows, but all cows are considered bovines.

Given these explanations, the correct answer is: Cow, Bovine, Mammal, Vertebrate, Animal

The most appropriate answer is: 1) Both Statement I and Statement II are true (Option 1).

Key Points

Statement I:

• This statement is true.
• A self-standard appraisal is an evaluation method where a student's performance is compared to their own past performance, focusing on their personal growth and improvement. It helps students identify areas for improvement and track their progress over time.

Statement II:

• This statement is also true.
• Normative assessment is an evaluation method that compares a student's performance to established norms or standards, such as grade benchmarks, standardized tests, or peer performance data.
• It focuses on measuring skills and abilities against a predefined reference point, often relevant to real-life situations like applying knowledge or skills in practical scenarios.

Key Points 

• Nyaya, an ancient Indian system of logic and philosophy, uses a method of reasoning that involves the construction of a syllogism or a logical statement known as a 'Nyaya Vakya' or 'Nyaya Sutra'. This syllogism consists of five components:
• Pratijna (Proposition) - The statement to be proved.
• Hetu (Reason) - The reason for the proposition.
• Udaharana (Example) - An example that supports the reason.
• Upanaya (Application) - The application of the reason to the proposition.
• Nigamana (Conclusion) - The conclusion that reaffirms the proposition.
• Statement I claims that the first part of the Nyaya syllogism corresponds to the fifth part, which is true. The proposition (Pratijna) introduced at the beginning is reaffirmed in the conclusion (Nigamana), thus corresponding to each other.
• Statement II asserts that in a Nyaya syllogism, the second part (Hetu) corresponds to the fourth part (Upanaya). This is also true. The reason provided (Hetu) is applied in the Upanaya, which effectively means showing how the reason applies to the specific case in question, leading towards the conclusion.

 

Both statements accurately describe the structure and logical flow of a Nyaya syllogism, making option 1 the correct answer.

Solution:

In the given code, ‘champion’ is represented by the code ‘ka’, and ‘is’ is represented by the code ‘sa’.

∴ The correct answer is "ka, as".

Key Points 

• Buddhism is a religion and philosophy that focuses on teachings attributed to Gautama Buddha. It emphasizes several key concepts that are central to the human condition and spiritual practice.
• (B) Impermanence (Anicca in Pali): This is one of the three marks of existence in Buddhism. It refers to the idea that all conditioned things are in a constant state of flux and change. Nothing in the physical or mental world is permanent. This concept encourages mindfulness and detachment from material possessions and ego.
• (C) Human Suffering (Dukkha in Pali): Suffering or dissatisfaction is another core concept in Buddhism and is also one of the three marks of existence. The Buddha taught that life is characterized by suffering, which arises from craving, attachment, and ignorance of the true nature of reality. The Four Noble Truths, a fundamental doctrine of Buddhism, begin with the acknowledgment of suffering and outline the path toward its cessation.
• (D) Non-self (Anatta in Pali): The non-self or not-self is the third mark of existence. It counters the notion of a permanent, unchanging self or soul. According to Buddhism, what we consider the "self" is actually a collection of changing phenomena, including physical form, sensations, perceptions, mental formations, and consciousness. Understanding anatta is essential for achieving enlightenment as it helps in letting go of ego and the illusion of a separate self.
• Options (A) Human Hierarchy and (E) Social Distancing are not primary focuses of Buddhist teachings. While Buddhism recognizes the existence of social structures and the importance of responsible interaction within communities, it does not emphasize human hierarchy as a spiritual principle. Social distancing, as it is commonly understood today, particularly in the context of public health, is not a concept directly addressed in Buddhist teachings.

Therefore, options (B) Impermanence, (C) Human Suffering, and (D) Non-self are correct, as Buddhist communication and teachings primarily aim to illustrate these phenomena, reflecting deep insights into the nature of existence and the path to liberation.

The correct answer is (1) Both Statement I and Statement II are true.

Key Points

Statement I: The wastewater sample contains the residues left from the total solid (dissolved and suspended) sample after the water has evaporated. 

• Total solids: This refers to the sum of all solids present in a wastewater sample, including both dissolved and suspended solids.
• Dissolved solids: These are solids that are dissolved in the water and cannot be seen by the naked eye. They can be removed by filtration.
• Suspended solids: These are solids that are not dissolved in the water and can be seen by the naked eye. They can be removed by sedimentation or centrifugation.
• Wastewater sample: This is a sample of water that has been used for some purpose and is now considered to be waste.
• When a wastewater sample is evaporated, the water is removed and the total solids are left behind. These total solids can then be further analyzed to determine the amount of dissolved and suspended solids present.

Statement II: The dissolved solid usually consists of colloidal particles.

• Colloidal particles: These are particles that are too small to be seen by the naked eye but too large to be considered dissolved solids. They range in size from 1 nanometer to 1 micrometer.
• Dissolved solids: As mentioned earlier, these are solids that are dissolved in the water and cannot be seen by the naked eye.
• Colloidal particles are typically found in dissolved solids because they are small enough to be suspended in the water. They can be removed from the water by filtration or centrifugation.

Therefore, both statements are true and provide information about the composition of wastewater samples.

The correct answer is (2) Wakelet

Key Points

• Wakelet is an online content curation tool that allows users to save, organize, and share content from a variety of sources, including websites, articles, and videos.
• Users can create collections of content on any topic, and then share these collections with others.
• Wakelet also offers a variety of features for collaborating on content curation projects, making it a valuable tool for educators, businesses, and anyone else who wants to easily organize and share information.

Here are some of the features of Wakelet:

• Save content from a variety of sources: Wakelet can be used to save content from websites, articles, videos, and more.
• Organize content into collections: Users can create collections of content on any topic.
• Share collections with others: Collections can be shared with others via a link or social media.
• Collaborate on content curation projects: Wakelet offers a variety of features for collaborating on content curation projects.

Here are some of the benefits of using Wakelet:

• Save time: Wakelet can save users time by helping them to quickly and easily find and organize the content they need.
• Stay organized: Wakelet can help users to stay organized by allowing them to create collections of content on any topic.
• Share information: Wakelet can help users to share information with others by allowing them to share collections via a link or social media.
• Collaborate: Wakelet can help users to collaborate on content curation projects by offering a variety of features for collaboration.

Additional Information

Edpuzzle:

• Edpuzzle is an educational tool designed to add an interactive layer to video learning. It allows educators to take videos from various sources or use their own and integrate questions, voiceovers, and annotations directly into the video timeline.
• This interactivity aims to engage students more deeply with the content by testing their understanding as they watch. Teachers can track if and how students are engaging with the material, making it a powerful tool for both synchronous and asynchronous learning environments.
• It's particularly useful for flipped classrooms, remote learning, and reinforcing key concepts in a more dynamic way than traditional video watching.

Pixton:

• Pixton is an online comic-making tool that caters to educators, students, and casual creators. It offers a drag-and-drop interface that makes it simple to create detailed and expressive comics without the need for advanced drawing skills.
• Users can customize characters, backgrounds, and objects to tell a story, convey a lesson, or present information creatively. In educational settings, Pixton can be used to support learning by allowing students to visualize complex concepts, summarize content, or express their understanding and perspectives in a visually engaging format.
• Its application ranges from recreating historical events to illustrating scientific processes, making learning both fun and interactive.

Screencast-O-Matic:

• Screencast-O-Matic is a screen recording and video editing software that's widely used for creating tutorials, demonstrations, presentations, and more.
• It allows users to record portions of their screen or use a webcam, and incorporate audio narration and video from other sources.
• The editor provides tools for trimming and refining videos, adding text overlays, and inserting images or other media. This makes it particularly useful for educators creating instructional content, professionals developing training materials, or anyone needing to share knowledge or processes digitally.
• Its simplicity and flexibility make it accessible for users of all skill levels.

Key Points Statement I: The concept of validity cannot be applied to single propositions.

• This statement is correct.
• In logic, validity is a feature of arguments rather than single propositions (or statements). An argument is considered valid if its conclusion logically follows from its premises, regardless of the truth value of the premises themselves.
• Validity concerns the structural relationship between the premises and the conclusion, not the truth of the individual statements. A single proposition doesn't form an argument on its own and thus the concept of validity does not apply to it.

Statement II: The concept of truth cannot be applied to arguments.

• This statement is correct in the context it's intended to be understood.
• In logic, the concept of truth applies to propositions or statements, not directly to arguments as a whole. Arguments are evaluated based on their validity (whether the conclusions logically follow from the premises) and soundness (if the argument is both valid and all its premises are true).
• An argument itself is not labeled "true" or "false"; instead, its premises and conclusion can be. Therefore, saying that the concept of truth does not apply to arguments aligns with the distinction between assessing the structure of arguments (validity) versus the truth status of individual propositions within those arguments.

Hence, Both Statement I and Statement II are correct

Solution:

The pattern here is that the first letter of each term is in alphabetical order A, B, C, and D, similarly, the first letter in the blank space is E.

The second letter follows prime number series 2, 3, 5, 7 and the second letter in the blank space is 11

The third letter is in reverse alphabetical order Y, X, W, and V, similarly the last letter in the blank space is U.

∴ The correct answer is "E11U".

Key Points 

• The Education Dispatch of 1854, often referred to as Wood's Dispatch after Sir Charles Wood, the then President of the Board of Control of the East India Company, is dubbed the "Magna Carta of Indian Education" due to its foundational role in shaping modern educational policy in India.
• Before this dispatch, education in India was largely traditional, with schools focused on religious and classical education in languages like Sanskrit and Persian, which had limited reach and relevance to the broader needs of society.

Wood's Dispatch aimed to transform this landscape based on several key principles and recommendations:

• Introduction of a Secular Education System: The Dispatch advocated for education to be secular and available to people of all castes and backgrounds. It emphasized the importance of educating the masses and not just the elite.
• Establishment of a Hierarchical Education Structure: Wood's Dispatch recommended the creation of a systematic hierarchy of educational institutions, including universities at the top, followed by colleges, high schools, and elementary schools.
• Medium of Instruction: While the Dispatch suggested English as the medium of instruction for higher studies, it emphasized the importance of vernacular languages for primary and secondary education to ensure broader accessibility.
• Grants-in-Aid System: It introduced a system of grants-in-aid to support established private educational institutions adhering to certain standards set by the government.
• Women's Education: The Dispatch underlined the importance of women's education, marking a significant step towards inclusive education policies.
• Vocational and Technical Education: It also stressed the necessity of technical and vocational education to cater to the economic needs of the country.
• Creation of Universities: Following the recommendations of the Dispatch, universities based on the London University model were established in Bombay (Mumbai), Calcutta (Kolkata), and Madras (Chennai) in 1857.

Key Points

Long term memory can be categorized into different types or sub-types, encompassing both declarative and procedural memories:

• (A) Declarative Memory (Explicit) - This type of memory involves knowledge of facts and events we can consciously recollect. It is further divided into:
• (C) Episodic Memory - Part of declarative memory, involving the recollection of specific events, situations, and experiences.
• (D) Semantic Memory - Also part of declarative memory, involving facts, concepts, knowledge-about-the-world, and language.
• (B) Procedural Memory (Implicit) - This type involves memories of motor skills, habits, and other behaviors that are unconscious and expressed through performance rather than recollection.

Given the definitions above, all the options (A) Declarative Memory, (B) Procedural Memory, (C) Episodic Memory, and (D) Semantic Memory are types or sub-types of long term memory.

The correct answer is: (A), (B), (C), and (D)

This statement is most closely associated with: Inductivism

Key Points

• Inductivism is an approach to scientific inquiry that emphasizes the importance of observation and experience.
• Knowledge is built from specific observations to form general theories, indicating that collecting facts and evidence is foundational before developing broader theories or principles.

Key Points 

Statement I: In Nalanda, apart from Buddhist canonical texts, the vedas were also taught.

• This statement is true. Nalanda was a renowned center of Buddhist learning, but it also offered a broad curriculum that included the study of the Vedas, the foundational texts of Hinduism. This demonstrates the university's commitment to intellectual diversity and its willingness to engage with different religious and philosophical traditions.

Statement II: However, attempts were made to discourage the teaching of literature of the rival religions.

• Statement II suggests that "attempts were made to discourage the teaching of literature of the rival religions." This statement is not correct when applied to Nalanda.
• Nalanda was known for its tolerance and scholarly environment where debates and discussions were encouraged. The notion of "rival religions" may not accurately reflect the ethos of academic pursuit and religious tolerance that prevailed in ancient Indian educational institutions like Nalanda.

Therefore, the correct answer is Statement I is correct but Statement II is incorrect.

The name of channel 04 in SWAYAM PRABHA related to social science 2, Education, Psychology, Homescience and related subjects is: 2) SAARASWAT

Key Points

• This information can be found on the official website of SWAYAM PRABHA where they list the allocation of channels with their respective names and subjects: https://www.swayamprabha.gov.in/
• According to the website, channel 04 is named SAARASWAT and is managed by CEC/UGC, focusing on Social Science - 2, Education, Psychology, Home Science and related subjects.

The most appropriate answer to the question is: Statement I is incorrect but Statement II is correct

Key Points

• Statement I: The statement that the most suitable storage medium for storing data on a network server is a Blu-ray disc is incorrect.
• Network servers typically use hard drives (HDDs) or solid-state drives (SSDs) for data storage due to their higher capacity, faster read/write speeds, and easier accessibility over a network. Blu-ray discs, while offering a relatively high storage capacity for optical media, are not commonly used for primary network storage because they are less practical for the frequent data access and updates typical in network server environments.
• Statement II: The statement that an optical disc which cannot have data updates is a CD-ROM is correct. CD-ROM stands for Compact Disc Read-Only Memory.
• As implied by the name, CD-ROMs are formatted as read-only. This means that once data has been written to them during the manufacturing process, it cannot be modified or updated. This contrasts with other types of CDs, such as CD-R (Compact Disc-Recordable) and CD-RW (Compact Disc-Rewritable), which allow users to write and rewrite data.

Therefore, option 4 is the correct answer.

Both Statement I and Statement II are correct

 Key Points

• Statement I indicates that non-verbal emotional expression, such as smiling, crying, or showing fear, occurs before verbal communication skills develop in human life. This is true as babies and very young children rely on non-verbal means to express their needs and emotions before they acquire language skills.
• Statement II suggests that socialization—the process by which individuals learn the norms, values, behaviors, and social skills appropriate to their society—includes learning the norms for how emotions should be appropriately expressed or communicated in different social contexts, known as display rules. This is also correct, as part of growing up and interacting with others involves understanding and adhering to social norms regarding emotional expression.

The correct answer is - Accumulation of air pollutants

Key Points

• Accumulation of air pollutants
• The condition known as temperature inversion occurs when a layer of warmer air traps cooler air near the surface.
• This phenomenon prevents the dispersal of air pollutants, causing them to accumulate in the lower atmosphere.
• As a result, pollutants like smog and particulate matter remain concentrated near the ground, leading to poor air quality.

Additional Information

• Temperature Inversion
• Typically, air temperature decreases with height. In an inversion, the temperature increases with height in a defined layer.
• This traps emissions from vehicles, industrial activity, and other sources at lower altitudes.
• Commonly occurs in valleys or on calm, clear nights when the ground cools rapidly.
• Health Impacts
• Prolonged exposure to high concentrations of pollutants can lead to respiratory issues such as asthma and bronchitis.
• Vulnerable populations like children and the elderly are at higher risk.
• Environmental Impacts
• Can negatively affect plant life, reducing photosynthesis and impairing growth.
• Contributes to phenomena such as acid rain which can damage ecosystems.

Key Points 

To match each software type with its most appropriate use, consider what each type of software is typically used for:

• (A) Desktop Publishing Software is used for creating documents with a layout of text and images, such as magazines, brochures, posters, and so on. Thus, the most appropriate match is (IV) Producing a magazine.
• (B) Presentation Software is used for creating slideshows that can include text, images, and multimedia elements, making (III) Producing a multimedia slideshow the correct match.
• (C) Inference Engine is part of expert systems designed to simulate the ability of human experts, thus it's often used in tasks like diagnosing or matching symptoms with illnesses. Therefore, a match with (II) Matching illness to symptoms is appropriate.
• (D) Database Software is used for storing, retrieving, and managing data systematically, which suits perfectly for (I) Keeping records of employees of a large organisation.

 

The correct answer is: (A) - (IV), (B) - (III), (C) - (II), (D) - (I)

Key Points 

• While the abstract, observations, and conclusions are crucial for checking plagiarism, the focus is primarily on the content of the research report, excluding established and widely used rules of grammar, formatting, and common words or phrases. These elements, even if identical between two works, wouldn't necessarily indicate substantial content plagiarism.
• However, it's important to note that plagiarism detection software might still flag excessive use of identical phrases or patterns, even for commonly used elements. In such cases, it's crucial for human reviewers to exercise judgment and consider the context to determine if plagiarism has occurred.

Therefore, option B and E is the correct answer.

Statement I is true, but Statement II is false is the correct answer.

 Key Points

• Statement I is correct because hazardous waste with a high or low pH value can be corrosive and may pose a risk to the environment and public health. Neutralizing such waste to bring its pH closer to neutral (around 7) before disposal or treatment is a common practice to mitigate these risks. This process helps in stabilizing the waste, making it safer to handle and less harmful to the environment.
• Statement II, however, is false. To neutralize hazardous waste with a low pH value (acidic), one would not add acids like sulfuric acid (H2SO4) or hydrochloric acid (HCl), as these substances would further lower the pH, making the waste more acidic. Instead, to neutralize acidic waste (low pH), a base or alkaline substance, such as sodium hydroxide (NaOH) or calcium hydroxide [Ca(OH)2], is typically added to raise the pH to a neutral level.

Key Points 

• Social emotions are emotions that depend on the thoughts, feelings, or actions of others, as they relate to us. They arise during interpersonal communication and reflect our relationships and social interactions. Let's consider each option and why they are categorized as social emotions:
• (A) Embarrassment: This is a social emotion because it arises from being aware of or perceiving a negative evaluation from others. For example, if someone trips in public, they might feel embarrassed because they believe others view them as clumsy or awkward.
• (B) Guilt: Guilt is experienced when an individual believes they have violated a moral code or hurt someone else, indicating an awareness of the impact of one's actions on others. It's inherently social because it involves considering another's feelings or societal norms.
• (C) Shame: Like guilt, shame is deeply tied to how we perceive others viewing us. It involves feelings of humiliation or distress about failing to live up to a certain social standard or expectation.
• (D) Pride: Pride is felt when an individual achieves something that is valued by themselves and perceived to be valued by others. It's a reflection of how our accomplishments are seen in the context of social recognition and approval.
• (E) Jealousy: Jealousy occurs when someone perceives a threat to a valued relationship or advantage due to a rival. It is inherently social, stemming from comparisons with others and concerns about status or relationships.

**All of these emotions—embarrassment, guilt, shame, pride, and jealousy—**are mediated through and influenced by our interactions with others, highlighting how they are all important components of social life and interpersonal communication. Hence, they are all considered social emotions.

Hence the correct matching is (A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Formula Used:

Effective Annual Rate = {1 + (Nominal Interest Rate/Number of Compounding Periods)}^{Number of Compounding Periods} - 1

Calculation:

In this case, the nominal interest rate is 10% per annum, and the interest is compounded semi-annually. Therefore, the number of compounding periods is 2 per year. Plugging these values into the formula, we get:

⇒ (1+ (10%/2))² - 1

⇒ 0.1025

The effective annual rate of interest is 10.25%.

∴ The correct answer is "10.25%".

The correct answer is Ecological Validity.

Key Points

• Ecological validity refers to the extent to which the findings of a research study are able to be generalized to real-world settings. This concept is directly related to the question of whether social scientific findings apply to people's everyday natural social environment. When research has high ecological validity,
• it suggests that the results and conclusions derived from the study can be applied to everyday situations outside of the controlled experimental conditions. It assesses the degree to which the study's outcomes can be expected to hold true in the natural environments where people live, work, and interact.
• In the context of social science research, ecological validity is particularly important because it helps determine the relevance and applicability of the findings to real-world social phenomena. Studies with high ecological validity ensure that the behavior observed and measured in research settings accurately reflects the behavior that occurs in natural, uncontrived settings. This makes the concept of ecological validity crucial for researchers who aim to understand and make predictions about human behavior and social interactions in their natural contexts.

Key Points 

• Bioaccumulation refers to the accumulation of substances, such as pesticides, or other chemicals in an organism. This occurs because the substance takes longer to break down than to be absorbed by the surrounding environment. In the context of DDT (a pesticide), it accumulates through the food chain, starting from the water bodies to the top predators.

Here's the order of DDT concentration due to bioaccumulation:

• Water Body (B): This is where the DDT concentration starts, so it will have the lowest concentration among the listed options.
• Zooplanktons (D): These are tiny organisms found in water and directly absorb DDT from the water. They have a higher concentration of DDT than water bodies due to bioaccumulation but lower than the organisms that feed on them.
• Fish (A): Fish feed on zooplankton and possibly other smaller fishes, leading to a higher concentration of DDT due to biomagnification.
• Fish-eating birds (C): These are at the top of the food chain and consume fish. They have the highest concentration of DDT due to bioaccumulation over time.

So, the correct order, increasing in DDT concentration, is:

• Water body (B), Zooplanktons (D), Fish (A), Fish-eating birds (C).

The correct answer from the given options is: (B), (D), (A), (C)

Key PointsTo determine the correctness of both statements, we need to convert the hexadecimal and decimal numbers as specified:

Statement (I): ( \((21E)_{16} = (541)_{10}\) )

• Converting ( \((21E)_{16}\) ) to decimal:
• [ \(2 \times 16^2 + 1 \times 16^1 + 14 \times 16^0\) ]
• [ \(= 512 + 16 + 14\) ]
• [ = 542 ]
• Therefore, Statement (I) is incorrect as ( \((21E)_{16} = (542)_{10}\) ), not ( (541)_{10} ).

Statement (II): ( \((257)_{10} = (101)_{16}\) )

• First, let's see if this conversion is correct:
• ( \((257)_{10}\) ) can be converted to hexadecimal by dividing it by 16:
• [\( 257 \div 16 = 16 \text{ remainder } 1\) ] [ \(16 \div 16 = 1 \text{ remainder } 0\) ]
• So, writing this as a hexadecimal number from bottom to top, we get ( \((101)_{16} \)).

Therefore, Statement (II) is correct.

Hence, the correct answer is Statement I is incorrect but Statement II is correct.

The correct answer is "(B), (C), (D) and (E) only."

Key Points

• The passage discusses the historical increase in life expectancy, attributing it initially to certain factors. These factors include the availability of clean water, vaccines, antibiotics, and good nutrition.
• These advancements in public health and medicine played a crucial role in improving life expectancy over the years.

Thus, option 3 is the correct answer.

Additional Information

• The passage mentions that the initial increase in life expectancy was driven by innovations such as clean water, sewerage, waste disposal, good nutrition, vaccines, and antibiotics.
• Vaccines are specifically mentioned in the passage as one of the factors contributing to the increase in life expectancy.
• Antibiotics are also explicitly mentioned in the passage as part of the innovations that contributed to the improvement in life expectancy.
• The passage mentions good nutrition as one of the factors that drove the initial increase in life expectancy.

The correct answer is "Both Statement I and Statement II are incorrect."

 Key Points

• Statement (I) suggests that emerging new technologies will not increase the life span of residents of least developed countries.
• However, the passage does not explicitly state this, and the overall tone is more optimistic about the potential for increasing life expectancy globally, even in least developed countries. Therefore, Statement I is incorrect.
• Statement (II) suggests that emerging new technologies will successfully overcome all social and physical limitations to increase the life span of humans.
• While the passage discusses the potential benefits of new technologies. Therefore, Statement II is also incorrect.

Thus, option 2 is the correct answer.

 

Additional Information

• The passage also emphasizes the need for balance and highlights potential challenges, such as increased expenses and the widening gap between rich and poor.

The correct answer is "people died before the disease started developing."

Key Points

• The passage mentions that Alzheimer's disease was virtually unknown before the 1950s because, statistically speaking, most people died before symptoms developed.
• The limited life expectancy meant that fewer individuals lived long enough to experience the onset of Alzheimer's disease symptoms.

Thus, option 3 is the correct answer.

Additional Information

• As life expectancy has increased over time, diseases like Alzheimer's, which are more common in older age, have become more prevalent.

The correct answer is "(A) and (C) only."

Key Points

• (A) They will be expensive for older people: The passage mentions that today's developing technologies will be increasingly expensive at the upper end of the age spectrum.
• (C) They will increase the gap between the rich and the poor: The passage states that as life expectancy increases, today's developing technologies will undoubtedly be increasingly expensive at the upper end of the age spectrum and widen the gap between rich and poor.

Thus, Option 1 is the correct answer.

Additional Information

• This implies that advanced medical technologies, which may contribute to increased life expectancy, could come with higher costs, particularly affecting older individuals.
• The advanced medical technologies might be more challenging for individuals with lower economic means, contributing to socioeconomic disparities in health and longevity.

The correct answer is Option 4) "grow rapidly".

Key Points

• The passage states that numerous "progressive thinkers" have begun discussing the possibility of a child being born in the next twenty years who could live to be 140 years old or older. This indicates a potential massive leap in life expectancy.
• This leap is described as being "unimaginable" in the current context, denoting a considerable increase, not a slight one.
• The mentality relies on technological advances proceeding more rapidly than the physical and biological aging of the individual.
• Though the passage includes caveats about the social and financial implications of such an increase, it does not suggest any factor that would cause life expectancy to decrease or remain steady.

Therefore, the correct answer is - "grow rapidly".

Additional Information

• "Increase slightly" - The passage suggests a profound change, not a slight growth in life expectancy.
• "Decrease" - The passage does not point towards any instances or factors that might result in a decrease in life expectancy.
• "Remain stable" - While certain social and health issues complicate the outlook, the passage does not indicate that these would cause life expectancy to remain the same.