Questions

Q:

The reflector of a search light is a :

A) Convex mirror B) Concave mirror
C) Plane mirror D) Cylindrical mirror
 
Answer & Explanation Answer: B) Concave mirror

Explanation:
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Q:

In the gamma decay of a nucleus

A) the mass number of the nucleus changes whereas its atomic number does not change B) the mass number of the nucleus does not change whereas its atomic number changes
C) both the mass number and the atomic number of the nucleus change D) neither the mass number nor the atomic number of the nucleus changes
 
Answer & Explanation Answer: D) neither the mass number nor the atomic number of the nucleus changes

Explanation:

The emission of gamma rays does not alter the number of protons or neutrons in the nucleus but instead has the effect of moving the nucleus from a higher to a lower energy state (unstable to stable)

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Q:

Who is generally considered to be the father of the Indian Renaissance?

A) Rabindranath Tagore B) Raja Rammohan Roy
C) Mahatma Phule D) M.G. Ranade
 
Answer & Explanation Answer: B) Raja Rammohan Roy

Explanation:
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Q:

Find the angular elevation of the sum when the shadow of a 15m long pole is 152meters

A) 45° B) 60°
C) 30° D) 90°
 
Answer & Explanation Answer: B) 60°

Explanation:
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Q:

Out of the four alternatives, choose the one which can be substituted for the given words/sentences and click the button corresponding to it.

Favouritism shown by a person in power to his relatives

A) Formalism B) Red­tapism
C) Nepotism D) Bureaucracy
 
Answer & Explanation Answer: C) Nepotism

Explanation:
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Q:

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

Due to heavy rains, the match was called _____.

A) of B) off
C) down D) out
 
Answer & Explanation Answer: B) off

Explanation:
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Q:

A sentence has been given in Active/Passive Voice. Out of the four given alternatives, select the one which best expresses the same sentence in Passive/Active Voice.

 

I will conquer it.

 

A) It would conquer me. B) It will be conquered by me.
C) Conquered it will be by me. D) It will be conquer by me
 
Answer & Explanation Answer: B) It will be conquered by me.

Explanation:
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Q:

In the question given below, three paragraphs are given, which are jumbled. Find the correct sequence of these paragraphs so that they form a meaningful passage.
A. Climate change is warming the ocean, but it’s warming land faster and that’s really bad news for air quality all over the world, says a new University of California, Riverside study. The study, published February 4 in Nature Climate Change, shows that the contrast in warming between the continents and sea, called the land-sea warming contrast, drives an increased concentration of aerosols in the atmosphere that cause air pollution. Aerosols affect the climate system, including disturbances to the water cycle, as well as human health. They also cause smog and other kinds of air pollution that can lead to health problems for people, animals, and plants.
B. To determine this, the researchers ran simulations of climate change under two scenarios. The first assumed a business-as-usual warming model, in which warming proceeds at a constant, upward rate. The second model probed a scenario in which the land warmed less than expected. In the business-as-usual scenario, enhanced land warming increased continental aridity and, subsequently, the concentration of aerosols that leads to more air pollution.
C. A robust response to an increase in greenhouse gases is that the land is going to warm faster than the ocean. This enhanced land warming is also associated with increased continental
aridity. The increase in aridity leads to decreased low cloud cover and less rain, which is the main way that aerosols are removed from the atmosphere.

A) ACB B) BCA
C) BAC D) CAB
 
Answer & Explanation Answer: A) ACB

Explanation:

The correct sequence is ACB.

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