Search Previous Year Questions

Given:

Increase in 1 year = 20%

Population after increase = 30,942

Calculation:

⇒ Let the population a year ago be x.

⇒ So, x + 20% of x = 30942

⇒ x + $\frac{20}{100}$ × x = 30942

⇒ x + $\frac{x}{5}$ = 30942

⇒ $\frac{5x+x}{5}$ = 30942

⇒ x = $\frac{30942\times 5}{6}$ = 5157 × 5 = 25785

Therefore, the population originally a year ago was 25785.

The Correct Answer is Cytokinin.

Key Points

• Cytokinins are a class of plant growth substances (phytohormones) that promote cell division or cytokinesis in plant roots and shoots.
• There are two types of Cytokinins: Adenine-type Cytokinins represented by Zeatin, Kinetin and 6-Benzylaminopurine and Phenylurea-type Cytokinins like Diphenylurea and Thidiazuron (TDZ).

Key Points 

• Auxins are a class of plant hormones with some morphogen-like characteristics. Auxins play a cardinal role in the coordination of many growths and behavioural processes in plant life cycles and are essential for plant body development.
• Abscisic acid is a plant hormone. ABA functions in many plant developmental processes, including seed and bud dormancy, the control of organ size and stomatal closure.
• Gibberellins are plant hormones that regulate various developmental processes, including stem elongation, dormancy, germination, flowering, flower development and leaf and fruit senescence.

Additional Information 

सही उत्तर गृह है।  

Key Points

• घर एक तद्भव शब्द है, इसका तत्सम रूप गृह होगा।
• तत्सम शब्द संस्कृत भाषा के दो शब्दों, तत् + सम् से मिलकर बना है।
• तत् का अर्थ है– उसके, तथा सम् का अर्थ है – समान। अर्थात ज्यों का त्यों।
• तत्सम शब्द - जिन शब्दों को संस्कृत से बिना किसी परिवर्तन के ले लिया जाता है, उन्हें तत्सम शब्द कहते हैं।
• तत्सम शब्द में ध्वनि परिवर्तन नहीं होता है। जैसे – आम्र, अग्नि, अमूल्य, क्षेत्र, अज्ञान, अन्धकार, चंद्र, बांग्ला, मराठी, गुजराती, हिंदी, पंजाबी, कन्नड़, तेलगु, मलयालम आदि।
• तद्भव शब्द- वे शब्द होते हैं, जो संस्कृत भाषा से तो आते हैं, लेकिन वे शब्द हिंदी में जाकर बदल जाते हैं। हिंदी में उनके परिवर्तित रूप को 'तद्भव' कहा जाता है। जैसे –   आँसू, ऊँचा, किवाड़, कैंची, कोख, कुत्ता, खाट, घी, चीता, खीर, तीखा, तेल, धतूरा आदि।

The correct answer is Washington D.C.

• The World Bank Group (WBG) is a specialized agency of the United Nations and its headquartered in Washington D.C.

Key PointsThe World Bank Group include five groups which are:

• International Bank for Reconstruction and Development (IBRD)
• International Development Association (IDA)
• International Finance Corporation (IFC)
• Multilateral Guarantee Agency (MIGA)
• International Centre for the Settlement of Investment Disputes (ICSID)
• To become members of the IDA, IFC, and MIGA, the countries must first become members of IBRD.

Additional Information

• World Bank approved 1 billion US$ aid to India to accelerate 'India's Covid 19 special protection response programme'.
• There are 2 goals for the world to achieve by 2030 –
• End extreme poverty by decreasing the percentage of people living on less than $1.90 a day to no more than 3%.
• Promote shared prosperity by fostering the income growth of the bottom 40% for every country.

The correct answer is option 3, i.e. Pole.

The center of reflecting surface of a spherical mirror is called the pole.

• The reflecting surface of spherical mirrors forms a part of the surface of a sphere. Reflecting the surface of such mirrors can be curved inwards or outwards.
• When reflecting surface curved inwards and faces towards the center of the sphere is called a concave mirror and when reflecting surface curved outwards is called a convex mirror.
• The center of reflecting the surface of a spherical mirror is called a pole and it lies on the surface of the mirror. It is represented by the letter P.
• The reflecting surface of the spherical mirror forms a part of the sphere. The center of this sphere is called the center of curvature of the mirror. It is represented by the letter C.
• The radius of the sphere is called the radius of curvature of the mirror. It is represented by letter R.
• A straight line passing through pole and center of curvature is called as principal axis.
• Rays which are coming parallel to the principal axis falling on spherical mirror intersect or meet at the point on the principal axis is called as the principal focus. It is represented by the letter F.
• The distance between pole and principal focus is called principal focal length and it is represented by f.

Shishupal was the king of Chanderi during the Mahabharat period.

• As per a legend, Chanderi was established by king Shishupal during Mahabharat Period.
• He is also known as Chedi Naresh and his capital was 'Boodhi Chanderi'.
• In Buddhist literature also, the Chedi kingdom is mentioned as one of the 16 Mahajanapadas.
• Later it came under the control of Gurjar-Pratihaar kings, King Kirtipal constructed the Chanderi Fort here.
• After Pratiharas, it came under the control of Kushwaha dynasty.
• In 1251-52 Balban attacked Narwar and ruled over this area.
• From 1296-1316, Khilji dynasty ruled Chanderi.
• Lastly, in 1528, Chanderi King Medini Rai fought with Babur and lost the area to Mughals.

Hint

• If we see options, we can easily eliminate Ravana (Ramayana's period) and Arjuna (Hastinapur and Indraprasth area).
• And from fables we know that Kans was the ruler of Vrushni kingdom with its capital at Mathura, hence by the elimination of options we can easily reach right option 4.

बसेरा में एरा प्रत्यय है। 

Mistake Points

• ऐसे प्रत्यय जिन्हें मूल क्रियापद से जोड़ने पर कार्य करने वाले कर्ता का बोध हो, उन्हें कृत् प्रत्यय कहा जाता है
• जैसे - एरा, इयल, आका
• कमाना - कमेरा,
• बसना - बसेरा

Key Points

प्रत्यय वे शब्द होते है जो सार्थक शब्द के पीछे लगकर उसका अर्थ परिवर्तित कर देते है।

बसेरा शब्द में पीछे एरा प्रत्यय प्रयुक्त हुआ है।

बसेरा

• पुल्लिंग
• मार्ग में ठहरने की जगह।
• अस्थायी निवास।
• विशेषण
• विश्राम हेतु ठहरनेवाला।

Additional Information

• आरा प्रत्यय से निर्मित शब्द-
• बनजारा, निबटारा, छुटकारा, हत्यारा, घसियारा, भटियारा
• एरा प्रत्यय से निर्मित शब्द-
• लुटेरा, सपेरा, मौसेरा, चचेरा, ममेरा, फुफेरा, चितेरा, ठठेरा, कसेरा, लखेरा, भतेरा
• रा प्रत्यय से निर्मित शब्द-
• दूसरा, तीसरा, आसरा, कमरा, नवरात्रा, पिटारा, निबटारा, सहारा

• The friction experienced by an object is directly proportional to its weight, that is, with the increase in the weight, the friction experienced by the body also increases and vice versa.
• Friction is the opposing force or resistance which is experienced by two objects sliding against each other.
• The friction is the result of the interaction between the surface of the two objects. When the weight of the object increases, this interaction becomes stronger which is why the resistance also increases.

The correct answer is 14.

Key Points

• Madhya Pradesh
• A state of central India.
• Total Madhya Pradesh comprises 55 districts.
• Formation- 1 November 1956.
• Madhya Pradesh region is the second-largest Indian state and is the fifth-largest state by population.
• It borders the state of Uttar Pradesh to the northeast.
• 14 districts of Madhya Pradesh i.e.
• Morena, Bhind, Datia, Shivpuri, Ashoknagar, Sagar, Tikamgarh, Niwari, Chhatarpur, Panna, Satna, Rewa, Sidhi, and Singrauli shares boundary with Uttar Pradesh.

Additional Information

The correct answer is- ​Dancing is enjoyed by them.

Key Points

• In Active voice, a sentence emphasizes the subject performing an action.
• In passive voice, the sentence emphasizes the action or the object of the sentence.
• ​​Example: He reads a novel. (active voice)

                                     A novel is read by him. (passive voice) 

• The given sentence is in the Simple Present Tense and in Active voice.
• The rule for changing of Simple Present Tense from active voice to passive voice:
• Subject + V1 + Object(Active voice) into Object + is/am/are + V3 + by + Subject(passive voice)

​

**Therefore the correct sentence is: *​Dancing is enjoyed by them.*​

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Additional Information

• Table for conversion active to passive voice: