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Fast neutrons can easily be slowed down ...

Fast neutrons can easily be slowed down by

A

The use of lead shielding

B

Passing them through water

C

Elastic collisions with heavy nuclei

D

Applying a strong electric field

Text Solution

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The correct Answer is:
B
In the nuclear reactor ordinary water is used to reduce the speed of the fast moving neutrons and to make them thermal neutrons.
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