Target Exam

CUET

Subject

Physics

Chapter

Nuclei

Question:

Heavy water and ________ is one of the substance used as moderator in reactors.

Options:

Sea water

Titanium

Graphite

Cobalt

Correct Answer:

Graphite

Explanation:

The correct answer is Option (3) → Graphite

Graphite is used as moderators because -

(1) Effective at slowing Neutrons.

(2) Low neutron absorption.

(3) Stability at high temperature.

(4) Good thermal conductivity.