Questions

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:

Instrument for measuring low temperatures is called

A) Diagometer B) Cryometer
C) Chromatoptometer D) Cymometer
 
Answer & Explanation Answer: D) Cymometer

Explanation:
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Q:

If the acceleration due to gravity on the surface of earth is g, then the acceleration due to gravity on the surface of a planet whose mass is same as that of earth and radius is half as that of earth is _________________.

 

A) 2g B) g/4
C) g/2 D) 4g
 
Answer & Explanation Answer: D) 4g

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.

 

The path runs ______ forests and mountains.

 

A) in B) on
C) to D) towards
 
Answer & Explanation Answer: D) towards

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.

The best way to ____________ the children's poor test grades is to teach again the lesson and give a second test.

 

A) rectify B) right
C)  revise D) reform
 
Answer & Explanation Answer: A) rectify

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".

 

May be Karishma wasn't the only one who (had been overlooked) by Mrs Shah when it came to inheritance.

 

A) have been overlooked B) is been overlook
C) had been overlooking D) no improvement
 
Answer & Explanation Answer: D) no improvement

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".

 

The course (has been) a success with more than a thousand students joining it.

 

A) have been B) is been
C) was been D) no improvement
 
Answer & Explanation Answer: D) no improvement

Explanation:
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Q:

Improve the bracketed part of the sentence.
Higher crude oil prices have doubtlessly provided a significant fiscal boost in the past several months, although any (flair on) going forward can lead to a price spiral
that would have other untoward consequences as well.

A) flair in B) flare at
C) flare up D) No improvement
 
Answer & Explanation Answer: C) flare up

Explanation:
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