NEET Physics Question - Modern Physics

Assertion (A): Beryllium can be used as a moderator in nuclear fission reactor.

Reason (R): A fast moving electron on collision with a light stationary particle loses most of its energy in nuclear reactor.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Assertion (A) is true; Beryllium is a suitable moderator due to low mass and absorption.

Reason (R) is false; moderation involves neutrons, not electrons. Electrons are not used for moderating neutrons in nuclear reactors. Thus, (A) is true, but (R) is false.

Rankers Physics

Beryllium as a Moderator

Solution:

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