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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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Filed Under: Physics
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Q:

In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.

 

Kill someone by covering their nose and mouth so that they suffocate

 

A) Bulwark   B) Foster  
C) Sentinel   D) Smother
 
Answer & Explanation Answer: D) Smother

Explanation:
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Filed Under: English
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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

 

The professor informed that (A)/they had all done(B)/very badly.(C)/No error(D)

 

A) A B) B
C) C D) D
 
Answer & Explanation Answer: D) D

Explanation:
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Q:

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

The Hellenistic period covering the period of Mediterranean (1)/ history between the death of Alexander the Great in (2)/ 323 BC and the emergence of the Roman Empire. (3)/ No error (4)

 

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: A) 1

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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Filed Under: English
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Q:

The Kovvada Nuclear Park project is proposed to be setup in which State?

A) Rajasthan B) Uttar Pradesh
C) Andhra Pradesh D) Karnataka
 
Answer & Explanation Answer: C) Andhra Pradesh

Explanation:
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Filed Under: Indian Geography

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Q:

The oldest rock­cut architecture is found in ________________.

A) Rajasthan B) Bihar
C) Karnataka D) Mizoram
 
Answer & Explanation Answer: B) Bihar

Explanation:
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Filed Under: Indian Geography
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Q:

The short run average cost curve is ____ shaped.

A) U B) V
C) X D) W
 
Answer & Explanation Answer: A) U

Explanation:
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Filed Under: Indian Economy
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