Questions

Q:

The theory behind stars twinkling is that

A) The refractive index of the different layers of earth's atmosphere changes continuously, consequently the position of the star's image changes with time B) The intensity of light emitted by them changes with time
C) The light from the star is scattered by the dust particles and air molecules in the earth's atmosphere D) The distance of the stars from the earth changes with time
 
Answer & Explanation Answer: A) The refractive index of the different layers of earth's atmosphere changes continuously, consequently the position of the star's image changes with time

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Q:

The rate of change of velocity is called

A) Momentum B) Speed
C) Acceleration D) Force
 
Answer & Explanation Answer: C) Acceleration

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Q:

What is the heat generated (in J) in a heating element of resistance 800 Ω when a current of 0.2 A passes through it for 40 seconds?

 

A) 6400   B) 1280  
C) 640   D) 3200
 
Answer & Explanation Answer: B) 1280  

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Q:

Mirages are formed primarily due to ___ of light.

A) Reflection B) Diffusion
C) Refraction D) Scattering
 
Answer & Explanation Answer: C) Refraction

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Q:

In general, elasticity is a measure of

A) how firms' profits respond to changes in market prices.  B) the extent to which advances in technology are adopted by producers.
C) how much buyers and sellers respond to changes in market conditions. D) the extent to which a market is competitive. 
 
Answer & Explanation Answer: C) how much buyers and sellers respond to changes in market conditions.

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Q:

How many bones does a human baby have?

A) 206 B) 234
C) 270 D) 354
 
Answer & Explanation Answer: C) 270

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Q:

Read each sentence to find out whether there is any error in any underlined part and indicate your response in the Answer Sheet against the corresponding letter i.e., (a) or (b) or (c). If you find no error, your response should be indicated as (d).

A) Whom you think B) will be dismissed 
C) first? D) No error
 
Answer & Explanation Answer: A) Whom you think

Explanation:

The error is in first part. Replace ‘whom’ with ‘who’. ‘Whom’ is a pronoun which is the objective case of the pronoun ‘who’. But who is the subject in the given sentence, and hence usage of ‘whom’ is incorrect here.

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Q:

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

 

In its _______________ phase, the big telco monopolies tried to levy a "tax" on all Internet content __________________. The Internet companies were then the new kids on the _________________. They and the Internet user community fought back such attempts. This was the first net neutrality war, and it ______________ the principle of ________________ on the Internet between different types of content or sites.

 

This was the first net neutrality war, and it _____________

 

A) established B) establishes
C) was establishing D) were establishing
 
Answer & Explanation Answer: A) established

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