Q. The atomic mass of an element is fractional, because

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Q. A heterogeneous reactor is the one, in which the moderator and the

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Q. Radioactivity of an isotope is expressed in

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Q. Uranium Corporation of India Limited (UCIL) engaged in the mining & concentration of uranium ore is located at

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Q. 'Heavy water' is termed as 'heavy' because it is

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Q. A pressurised water reactor (PWR) uses pressurised water as a

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Q. The phenomenon of radioactivity was discovered by

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Q. Out of the following places, heavy water plant is not located at

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Q. Heavy water plant is not located at

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Q. Which is not a fissile nuclear material ?

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Q. Nuclear fuel usually used in a Boiling Water Reactor (BWR) is

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Q. The new nucleus formed after β-decay of a radioactive element has

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Q. Energy produced in the nuclear fission is of the order of __________ MeV.

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Q. Pressure in a Pressurised Water Reactor (PWR) is used for

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Q. Pick out the wrong statement.

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Q. Water is a better coolant than a gas (like CO₂, He, N₂ etc.), because it

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Q. Net efficiency of ordinary light water cooled nuclear reactor is about __________ percent.

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Q. The sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is

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Q. Extraction of uranium from its ore is done by __________ method.

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Q. 75% of a radioactive element decays in 6 hours. Its half life period is __________ hours.

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