The velocity of neutrons in nuclear reactor is slowed down by

1.	The velocity of neutrons in nuclear reactor is slowed down by
A.	Heavy water \[({{D}_{2}}O)\]
B.	Ordinary water \[({{H}_{2}}O)\]
C.	Zinc rod
D.	Fused caustic soda
Answer» B. Ordinary water \[({{H}_{2}}O)\]

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The velocity of neutrons in nuclear reactor is slowed down by

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