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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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Filed Under: Physics
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Q:

A body in equilibrium _______.

A) can move with constant acceleration B) is always at rest
C) can move with constant velocity D) can move with variable acceleration
 
Answer & Explanation Answer: C) can move with constant velocity

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Filed Under: Physics
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Q:

Name the device used to connect computers for communication via telephone lines..

A) HUB B) Switch
C) Repeater D) MODEM
 
Answer & Explanation Answer: D) MODEM

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Filed Under: Computer
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Q:

What causes the mottling of the dental enamel ?

A) High levels of chlorine in water B) High levels of nitrate in the water
C) High levels of fluorides in the water D) High levels of calcium in the water
 
Answer & Explanation Answer: C) High levels of fluorides in the water

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Filed Under: General Science

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Q:

Which country has launched world’s largest human genome research project to document genetic makeup of one lakh people?

A) Japan B) South Africa
C) China D) India
 
Answer & Explanation Answer: C) China

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Filed Under: General Awareness
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Q:

The title of Persian translation of the Mahabharata is:___________.

A) Anwar-e-Suhaili B) Razmanama
C) Hasht Bahisht D) Ayar Danish
 
Answer & Explanation Answer: B) Razmanama

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Filed Under: General Awareness
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Q:

According to the categories of land mentioned in the Chola inscriptions ___________ was known as the land gifted to Brahmanas?

A) Vellanvagai B) Brahmadeya
C) Shalabhoga D) Devadana
 
Answer & Explanation Answer: B) Brahmadeya

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Filed Under: Indian History
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Q:

If 1 x 3 x 5 = 1925 and 7 x 9 x 11 = 4981121 , then find the value of 19 x 21 x 23 = ?

A) 361529441 B) 361529441
C) 441361289 D) 361441529
 
Answer & Explanation Answer: D) 361441529

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Filed Under: Verbal Reasoning - Mental Ability

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