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The correct answer is Lagbhag Jai Hind.

Key Points

• Lagbhag Jai Hind is the first poetry collection by renowned Indian poet and author Vinod Kumar Shukla.
• It was first published in the year 1971 and marks the beginning of Vinod Kumar Shukla's literary journey as a poet.
• The collection reflects Shukla's distinctive style of blending profound philosophical thoughts with simple and everyday language.
• Vinod Kumar Shukla is known for his unique and thought-provoking contributions to Hindi literature, with this poetry collection being a significant milestone in his career.
• His works often explore themes of human emotions, social realities, and philosophical insights, and "Lagbhag Jai Hind" is no exception.

Additional Information

• Vinod Kumar Shukla's Literary Style:
• Shukla is celebrated for his minimalist and evocative writing style.
• His works often blend realism with surrealism, creating a unique narrative voice in Hindi literature.
• He uses simple language to convey complex ideas, making his works accessible yet deeply philosophical.
• Other Notable Works by Vinod Kumar Shukla:
• His novel "Naukar Ki Kameez" (The Servant's Shirt) gained critical acclaim and was adapted into a film by Mani Kaul.
• Another notable work, "Deewar Mein Ek Khidki Rehti Thi" (There Used to Be a Window in the Wall), reflects his mastery in storytelling.
• Recognition and Awards:
• Vinod Kumar Shukla has been awarded prestigious honors like the Sahitya Akademi Award for his contributions to Hindi literature.
• His works are celebrated for their originality and depth, establishing him as one of the key figures in modern Hindi literature.
• Impact on Hindi Poetry:
• Shukla's poetry often challenges traditional notions of poetic expression, focusing on the beauty of the mundane.
• His works have inspired a new generation of poets to embrace simplicity and innovation in their writing.

The correct answer is The cube of the semi-major axis of its orbit.

Key Points

• The Law of Periods, also known as Kepler's Third Law, states that the square of the orbital period of a planet is directly proportional to the cube of the semi-major axis of its orbit.
• Mathematically, it is expressed as: T² ∝ a³, where T is the orbital period and a is the semi-major axis.
• This law applies to planets, moons, and other celestial bodies orbiting a central body, such as the Sun or a star.
• The semi-major axis is the longest radius of an elliptical orbit, representing the average distance of the planet from the central body.
• Kepler's Third Law is derived from Newton's law of gravitation and provides a foundation for understanding orbital mechanics.

Additional Information

• Kepler's Laws of Planetary Motion:
• 1^st Law (Law of Ellipses): Planets move in elliptical orbits with the Sun at one focus.
• 2^nd Law (Law of Equal Areas): A line joining a planet and the Sun sweeps out equal areas in equal intervals of time.
• 3^rd Law (Law of Periods): The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.
• Semi-Major Axis:
• The semi-major axis is the average distance between the center of an orbiting body and the central body it orbits.
• For circular orbits, the semi-major axis is equivalent to the radius of the circle.
• Newton's Universal Law of Gravitation:
• Newton extended Kepler's laws by deriving them using his law of gravitation: F = G * (m1 * m2) / r², where G is the gravitational constant.
• It explains how gravitational forces govern the motion of celestial objects.
• Applications of Kepler's Third Law:
• It is used in calculating orbital periods of planets, satellites, and space missions.
• It helps in understanding the dynamics of exoplanets and binary star systems.

The correct answer is A very small fraction of α-particles rebounded almost backwards.

Key Points

• Rutherford's gold foil experiment involved the bombardment of a thin gold foil with α-particles (helium nuclei) to study atomic structure.
• Most α-particles passed through the foil undeflected, indicating that atoms are mostly empty space.
• A small fraction of α-particles were deflected at small angles, suggesting the presence of a positively charged center.
• A very tiny fraction of α-particles rebounded almost directly backward, leading Rutherford to conclude that the positive charge of the atom is concentrated in a very small, dense region, which he termed the nucleus.
• This observation provided experimental evidence for the nuclear model of the atom, replacing the earlier plum pudding model proposed by J.J. Thomson.

Additional Information

• Gold Foil Experiment: Conducted in 1909 by Hans Geiger and Ernest Marsden under the supervision of Ernest Rutherford, this experiment was pivotal in understanding atomic structure.
• Nuclear Model of the Atom: Proposed by Rutherford, it describes the atom as having a dense central nucleus containing protons, with electrons orbiting in the empty space surrounding it.
• Plum Pudding Model: An earlier atomic model proposed by J.J. Thomson, which suggested that electrons were embedded in a positively charged "pudding-like" substance. This model was disproved by Rutherford's experiment.
• α-Particles: Positively charged particles consisting of two protons and two neutrons, used as projectiles in the gold foil experiment.
• Implications of Rutherford's Findings: The discovery of the nucleus laid the foundation for the development of the modern quantum mechanical model of the atom and further studies on subatomic particles.

The correct answer is They are bordered by the Western Ghats.

Key Points

• The Western Coastal Plains are narrower because they are bordered by the Western Ghats, a mountain range that runs parallel to the coast, leaving limited space for the plains.
• The proximity of the Western Ghats to the coast restricts the development of extensive coastal plains, unlike the Eastern Coastal Plains.
• In contrast, the Eastern Coastal Plains are wider as the Eastern Ghats are more discontinuous and distant from the coastline.
• The Western Coastal Plains span from Gujarat in the north to Kerala in the south, covering states like Maharashtra and Goa, with an average width of 50-100 km.
• These plains feature prominent geographical formations like lagoons, backwaters, and estuaries, shaped by the interaction of the terrain and the coastline.

Additional Information

• Western Ghats
• The Western Ghats, also known as the Sahyadri Hills, are a UNESCO World Heritage Site recognized for their biodiversity.
• They influence the climate of the Western Coastal Plains by intercepting the southwest monsoon winds, causing heavy rainfall on the windward side.
• They are known for their steep slopes and dense forests, contributing to the narrowness of the plains.
• Eastern Coastal Plains
• The Eastern Coastal Plains lie between the Eastern Ghats and the Bay of Bengal and are wider compared to their western counterpart.
• They feature river deltas formed by major rivers like the Ganga, Godavari, Krishna, and Mahanadi.
• Coastal Plains of India
• India has two main coastal plains: the Western Coastal Plains and the Eastern Coastal Plains.
• The coastal plains are important for agriculture, fishing, tourism, and port development.
• Geographical Influence
• The physical geography of a region, including mountains and water bodies, plays a crucial role in shaping its landforms and ecosystems.
• The Western Ghats’ proximity to the Arabian Sea has resulted in unique features like estuaries and backwaters, such as Kerala's Vembanad Lake.

The correct answer is 550 members.

Key Points

• The maximum strength of the Lok Sabha is 550 members, as per Article 81 of the Indian Constitution.
• The allocation includes 530 members representing the states and 20 members representing the Union Territories.
• The President of India can also nominate 2 members from the Anglo-Indian community, if deemed necessary (this provision was abolished by the 104^th Constitutional Amendment Act of 2019).
• Currently, the Lok Sabha has a sanctioned strength of 543 elected members (530 from states and 13 from Union Territories).
• The Constitution specifies the upper limit of 552 members but allows flexibility in actual strength based on population and delimitation exercises.

Additional Information

• Delimitation:
• Delimitation refers to the act of redrawing boundaries of Lok Sabha and state legislative assembly constituencies based on population data.
• The Delimitation Commission is tasked with ensuring equitable representation across constituencies.
• The last delimitation exercise was conducted in 2002 based on the 2001 Census, and the next is expected after 2026.
• 104^th Constitutional Amendment Act (2019):
• This amendment abolished the provision of nominating 2 Anglo-Indian members to the Lok Sabha and state legislatures.
• Earlier, this was done to ensure representation for the Anglo-Indian community in India's legislative process.
• Rajya Sabha (Council of States):
• The Rajya Sabha is the Upper House of the Indian Parliament with a maximum strength of 250 members.
• Out of these, 238 members are elected, and 12 members are nominated by the President for their expertise in literature, science, art, and social services.
• Parliamentary System of India:
• India follows a bicameral parliamentary system consisting of the Lok Sabha (Lower House) and the Rajya Sabha (Upper House).
• The Lok Sabha represents the people of India, while the Rajya Sabha represents the states and Union Territories.

The correct answer is Aditya-L1.

Key Points

• Aditya-L1 is India's first solar mission, developed by the Indian Space Research Organisation (ISRO).
• Its primary objective is to study the Sun, including the solar corona, chromosphere, and solar winds, from the strategic Lagrange Point L1.
• The mission was successfully launched on September 2, 2023, from Sriharikota, Andhra Pradesh, using the PSLV-C57 rocket.
• The spacecraft is equipped with seven scientific payloads designed to observe and analyze various aspects of the Sun.
• The positioning at the Lagrange Point L1, approximately 1.5 million kilometers from Earth, provides uninterrupted observation of the Sun without any occultation or eclipses.

Additional Information

• Lagrange Point L1
• A Lagrange Point is a location in space where the gravitational forces of two large celestial bodies, like the Earth and Sun, balance the centripetal force felt by a smaller object.
• L1 is the point closest to the Sun, allowing continuous observation without disruptions caused by Earth's shadow.
• Scientific Payloads on Aditya-L1
• Visible Emission Line Coronagraph (VELC): Studies the solar corona and dynamics of coronal mass ejections.
• Solar Ultraviolet Imaging Telescope (SUIT): Observes the Sun's photosphere and chromosphere in near-ultraviolet wavelengths.
• Aditya Solar Wind Particle Experiment (ASPEX): Analyzes solar wind properties.
• Importance of Solar Studies
• Understanding solar phenomena like coronal mass ejections is crucial as they impact space weather and satellite operations.
• It helps in predicting geomagnetic storms that could disrupt communication systems and power grids on Earth.
• ISRO’s Achievements
• Aditya-L1 adds to ISRO’s legacy of pioneering space exploration missions, including Chandrayaan and Mangalyaan.
• It showcases India’s growing capabilities in conducting advanced scientific research and international collaborations.

The correct answer is Tamil Nadu.

Key Points

• Tamil Nadu is the largest producer of lignite coal in India, contributing significantly to the country’s lignite reserves and production.
• It is home to the Neyveli Lignite Corporation (NLC), which is a major producer of lignite and operates large-scale mining and power generation activities in the state.
• The Neyveli region in Tamil Nadu is rich in lignite reserves and contains one of the largest lignite mines in India.
• Lignite coal, also known as brown coal, is primarily used for power generation, and Tamil Nadu’s lignite is utilized in thermal power plants in the region.
• As of recent data, Tamil Nadu contributes to approximately 50% of the total lignite production in the country.

Additional Information

• Lignite Coal:
• Lignite is a type of sedimentary rock formed from naturally compressed peat and is considered the lowest rank of coal due to its lower heat content.
• It has a high moisture content and is primarily used for electricity generation in thermal power plants.
• India has significant lignite reserves, particularly in Tamil Nadu, Rajasthan, Gujarat, and Jammu & Kashmir.
• Neyveli Lignite Corporation (NLC):
• NLC is a Central Public Sector Enterprise headquartered in Neyveli, Tamil Nadu.
• It is engaged in lignite mining and thermal power generation, contributing significantly to the energy sector of India.
• It operates one of the largest opencast lignite mines in the country.
• Applications of Lignite:
• Lignite is predominantly used for thermal power generation due to its lower energy content compared to higher-grade coal.
• It is also used in industries such as cement, fertilizer, and iron & steel, as well as for gasification and briquetting.
• Other Leading States in Lignite Production:
• Rajasthan, Gujarat, and Jammu & Kashmir also contribute to India’s lignite production, though Tamil Nadu remains the leading producer.
• Rajasthan's Barsingsar region and Gujarat’s Bhavnagar district are notable for lignite mining activities.

The correct answer is Chandragupta Maurya.

Key Points

• Chandragupta Maurya, the founder of the Mauryan Empire, is credited with establishing an extensive spy system to ensure efficient governance and internal security.
• This spy network was a part of the administrative framework suggested by his advisor Chanakya (Kautilya), as outlined in the Arthashastra.
• The system comprised secret agents who worked undercover to gather intelligence on both internal and external matters.
• Spies were categorized based on their roles, such as ‘Sanstha’ (stationary informants) and ‘Sanchari’ (roving informants), to monitor various aspects of administration and society.
• The spy system played a critical role in safeguarding the empire from internal conspiracies and external threats, contributing to the stability of Chandragupta’s rule.

Additional Information

• Arthashastra:
• A comprehensive ancient Indian treatise on statecraft, economics, and military strategy authored by Chanakya (Kautilya).
• It emphasizes the importance of a well-organized administrative system, including espionage, for efficient governance.
• The text is divided into 15 books, covering topics like diplomacy, law, taxation, and intelligence gathering.
• Chanakya (Kautilya):
• A renowned ancient Indian philosopher, economist, and political advisor to Chandragupta Maurya.
• He played a pivotal role in the establishment of the Mauryan Empire and the formulation of its governance policies.
• Known for his strategic acumen and the compilation of the Arthashastra.
• Spy System in Ancient India:
• Ancient Indian rulers, including those of the Mauryan dynasty, used spies to gather intelligence on political, military, and economic matters.
• Spies often disguised themselves as ascetics, merchants, or commoners to blend into society and collect information.
• The system helped prevent rebellions, monitor officials, and manage foreign relations.
• Mauryan Empire:
• The Mauryan Empire (322–185 BCE) was the first large-scale empire in Indian history, founded by Chandragupta Maurya.
• It was marked by centralized administration, a well-organized bureaucracy, and military strength.
• Under rulers like Chandragupta and Ashoka, it became one of the most powerful empires in the ancient world.

The correct answer is Article 155.

Key Points

• Article 155 of the Constitution of India provides for the appointment of Governors in Indian states.
• The Governor of a state is appointed by the President of India by warrant under his hand and seal.
• The appointment process ensures that the Governor serves as the representative of the Union Government in the state.
• The term of office for a Governor is normally 5 years, but they serve at the pleasure of the President.
• The Governor's role is primarily ceremonial, but they hold powers as per the provisions of the Constitution, including executive, legislative, and discretionary powers.

Additional Information

• Article 154: It vests the executive power of the state in the Governor, to be exercised directly or through officers subordinate to them.
• Article 156: It specifies the conditions of service and tenure of the Governor, stating they hold office at the pleasure of the President.
• Federal Structure: The appointment of Governors reflects India’s quasi-federal structure, where the Union Government has oversight over states through the Governor.
• Role of the Governor: The Governor acts as a constitutional head, ensuring the state government operates within the framework of the Constitution.
• Discretionary Powers: In certain situations, such as the dissolution of the state assembly or during a constitutional crisis, the Governor can act independently of the Council of Ministers.

The correct answer is Option 3.

Key Points

• Fundamental Duties (a) are associated with the democratic value of recognition of citizens' responsibilities, ensuring that citizens contribute to the nation's development (iii).
• Equal voting rights (b) reflect the principle of universal franchise, ensuring equal political participation for all eligible citizens (iv).
• Local self-government provisions and responsibilities (c) promote grassroots democracy, empowering citizens at the village and town levels (i).
• Religious freedom assurance (d) aligns with the value of respect for individual conscience, emphasizing the right to freely practice and propagate religion (ii).

Additional Information

• Fundamental Duties:
• Introduced by the 42^nd Amendment of the Constitution in 1976 under Article 51A.
• Encourage citizens to uphold values like patriotism, environmental protection, and respect for national symbols.
• Universal Franchise:
• Core democratic principle ensuring voting rights to all adult citizens irrespective of caste, creed, religion, or gender.
• India adopted universal adult suffrage as part of its Constitution in 1950.
• Local Self-Government:
• Empowers Panchayati Raj institutions and urban local bodies through the 73^rd and 74^th Constitutional Amendments.
• Promotes participatory democracy and decentralized governance.
• Religious Freedom:
• Guaranteed under Articles 25-28 of the Indian Constitution.
• Includes the freedom of conscience, free profession, practice, and propagation of religion.