Questions

Q:

Which one of the following statements is not correct?

A) The response of the ear to sound of increasing intensity is approximately logarithmic. B) The sensitivity of the human ear does not vary with the frequency of the sound.
C) When two or more waves traverse the same medium, the displacement of any element of the medium is the algebraic sum of the displacements due to each wave. D) Longitudinal waves can travel in all media-solids, liquids and gases.
 
Answer & Explanation Answer: B) The sensitivity of the human ear does not vary with the frequency of the sound.

Explanation:

The human ear can respond to minute pressure variations inthe air if they are in the audible frequency range, roughly 20 Hz -20 kHz. In fact, tests conducted show an increased sensitivity in the 3000 Hz range which is the optimal amplification frequency in the human ear. So, the sensitivity of the human ear varies with the frequency of the sound.

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Q:

What is the heat generated (in J) in a heating element of resistance 1000 Ω when a current of 0.1 A passes through it for 25 seconds?

A) 250 B) 2500
C) 125 D) 1250
 
Answer & Explanation Answer: A) 250

Explanation:
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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.

 

Photography is the _____________ we can get to stopping time. The camera is our pause button, the cork we use to stop time from running out. And the photo album is the most potent time machine ever ____________, one that transports you to a curated past where everything exists ________ you choose to remember it,one that lets you revisit ________ just people and places and ages, but the hidden crannies of ________ own memory and the strange landscape of emotions that lies beyond.

 

lets you revisit ________ just people

A) nor B) none
C) no D) not
 
Answer & Explanation Answer: C) no

Explanation:
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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.

 

This is the arresting and dominant fact about modern social discussion; that the quarrel is __________ merely about the difficulties, but about the aim. We agree about the evil; it is about the good that we should tear each ____________ eyes out. We all admit that a lazy aristocracy is a bad thing. We should not by ________ means all admit that an active aristocracy would be a good thing. We all feel angry with an irreligious priesthood; but some of us would _______ mad with disgust at a really religious one. Everyone is indignant if our army is weak, _____________ the people who would be even more indignant if it were strong.

 

we should tear each ____________ eyes out.

 

 

A) others B) other’s
C) other D) otherwise
 
Answer & Explanation Answer: B) other’s

Explanation:
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Q:

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement".

 

We could not afford (to paying) the entire sum.

 

A) paid B) pays  
C) to pay   D) no improvement
 
Answer & Explanation Answer: C) to pay  

Explanation:
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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.

 

Cyber security has ________________interesting parallel to terrorism. _________________ are asymmetric. Ensuring security of data, information, and communication is considerably harder than hacking into a system. The attacker has an inherent ________________ in both conventional terrorism and cyber attacks. In the case _________________ state­sponsored attacks, the challenges are of a much ________________ magnitude.

 

the challenges are of a much ________________ magnitude.

 

A) heightened B) heighted
C) high D) higher
 
Answer & Explanation Answer: D) higher

Explanation:
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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

 

______ citizen of India must know about our country’s history, struggle, culture and other important things.

 

A) Each B) Any
C) Every D) No
 
Answer & Explanation Answer: C) Every

Explanation:
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Q:

Evaporation of water from leaves of a plant is called

A) Transpiration B) Respiration
C) Perspiration D) Evaporation
 
Answer & Explanation Answer: A) Transpiration

Explanation:
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