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In a nuclear moderators slow down the ne...

In a nuclear moderators slow down the neutrons which come out in a fission process. The moderator used have light nuclei. Heavy nuclei will not serve the purpose because

A

using a lead sheild

B

passing them through water

C

elastic collision with heavy nuclei

D

applying strong magnetic field

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JBD PUBLICATION-WORK,ENERGY AND POWER-EXAMPLE
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