Q:

The absolute refractive index of any medium is always:

A) more than one	B) 0
C) 1	D) less than one

Answer & Explanation Answer: A) more than one

Explanation:

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1 1804

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:

In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.

Jog someone’s memory

A) Describing someone	B) Appreciating someone’s humor
C) To be love with someone’s intelligence	D) To cause someone to remember something

Answer & Explanation Answer: D) To cause someone to remember something

Explanation:

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Q:

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

The Professor asked the intruder who was he and why was he in his lecture.

A) who he was and why he was	B) who he was and why was he
C) who he had been and why he had been	D) No improvement

Answer & Explanation Answer: A) who he was and why he was

Explanation:

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Q:

The sentences given with blanks are to be filled with an appropriate word(s). Four alternatives are suggested for each question. For each question, choose the correct alternative and click the button corresponding to it.

They abandoned their comrades __________ the wolves.

A) by	B) between
C) on	D) among

Answer & Explanation Answer: D) among

Explanation:

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Q:

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correct alternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

Really speaking, no man is perfect

A) Strictly	B) slightly
C) vaguely	D) No improvement

Answer & Explanation Answer: A) Strictly

Explanation:

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Q:

The question below consists of a set of labelled sentences. Out of the four options given, select the most logical order of the sentences to form a coherent paragraph.

Our only enemies were

X-heat, thirst, and flies, but far
Y-from man or beast than that awful trinity
Z-rather would I have faced any danger

A) XYZ	B) ZYX
C) XZY	D) ZXY

Answer & Explanation Answer: C) XZY

Explanation:

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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.

Pedal to the metal

A) Build something big by yourself.	B) Add more protection to an already strong shield.
C) To drive very fast.	D) Push a person to perform to its extreme.

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