Q. Which of the following may be used to measure the rate of nuclear disintegration?

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Q. The decrease in the atomic number is not observed in case of

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Q. The mass number of an element is not changed, when it emits __________ radiations.

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Q. Which of the following is not a naturally occurring nuclear fuel ?

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Q. An electron has a mass that is approximately __________ that of the proton.

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Q. Fast breeder reactors do not

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Q. Thorium-232 is converted into uranium-233 in a/an __________ nuclear reactor.

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Q. Which of the following may not need a control rod ?

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Q. One 'amu' is equivalent to

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Q. Commercial power generation from fusion reactor is not yet possible, because

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Q. Which is the most commonly used molten metal for cooling of nuclear reactors ?

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Q. The amount of a radioactive material (having a half life of 100 years) remaining after 400 years will be __________ of its original weight.

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Q. The second underground nuclear test was conducted by India at

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Q. Which of the following is artificially produced as it does not occur in nature ?

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Q. Gas cooling as compared to water cooling of nuclear reactors

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Q. The phenomenon of nuclear fission is opposite to that of

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Q. An ideal coolant for a nuclear reactor should

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Q. The size of an atom is of the order of one

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Q. 'Light water' used as a coolant in nuclear reactor is nothing but

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Q. Isotopes of an element have different

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