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Q:

An example of longitudinal waves (in gas as a medium) is ______.

A) heat waves B) radio waves
C) electromagnetic waves D) sound waves
 
Answer & Explanation Answer: D) sound waves

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Q:

Pyrolusite is an ore/mineral of ___________.

A) Mercury B) Manganese
C) Molybdenum D) Lead
 
Answer & Explanation Answer: B) Manganese

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Filed Under: Chemistry
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Q:

In the following question, out of the four alternatives, select the alternative which best expresses the meaning of the idiom/phrase

to cry wolf

 

A) to keep complaining over small issues B) to raise a false alarm
C) to act as if one feels sorry for the other person D) to report to a higher authority the mistakes committed by others
 
Answer & Explanation Answer: B) to raise a false alarm

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Q:

If sin(A/2) = x, then the value of x is

A) √[(1 + cosA)/2] B) √[(1 -­ cosA)/2]
C) √[(1 -­ sinA)/2] D) √[(1 + sinA)/2]
 
Answer & Explanation Answer: B) √[(1 -­ cosA)/2]

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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.

 

A remarkable concurrence of events or circumstances without apparent causal connection

 

A) Jangle B) Coincidence
C) Clamour D) Clinker
 
Answer & Explanation Answer: B) Coincidence

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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.

A transcendent state in which there is neither suffering, desire, nor sense of self

 

A) Woe B) Nirvana
C) Depression D) Despondency
 
Answer & Explanation Answer: B) Nirvana

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Q:

Find the acceleration (in m/s2) of a body which accelerates from 10 m/s to 20 m/s in 4 seconds.

A) 7.5 B) 15
C) 5 D) 2.5
 
Answer & Explanation Answer: D) 2.5

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Q:

What is the value of (cos45° + 1/3) ?

A) 2+√3 B) (2√2+1)/√2
C) (3+√2)/3√2 D) 5/√3
 
Answer & Explanation Answer: C) (3+√2)/3√2

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