In a nuclear reactor heavy nuclei is not used as moderators because

Question

In a nuclear reactor heavy nuclei is not used as moderators because (A) They will break up (B) Elastic collision of neutrons with heavy nuclei will not slow them down (C) The net weight of the reactor would be unbearably high (D) Substance with heavy nuclei do not occur in liquid or gaseous state at room temperature

Tardigrade Admin · Accepted Answer

Correct answer is (b) Elastic collision of neutrons with heavy nuclei will not slow them down

Q. In a nuclear reactor heavy nuclei is not used as moderators because

They will break up

Elastic collision of neutrons with heavy nuclei will not slow them down

The net weight of the reactor would be unbearably high

Substance with heavy nuclei do not occur in liquid or gaseous state at room temperature

Correct answer is (b) Elastic collision of neutrons with heavy nuclei will not slow them down