A material that does NOT become radioactive after absorbing neutrons is called.
Correct answer: C. Control material
- A. Shielding
- B. Reactor fuel
- C. Control material
- D. Both A and C
Explanation
Those materials that do not become radioactive after absorbing neutrons are called control materials. In order to control the nuclear fission in a reactor suitable neutron absorbing materials are required to be placed in the core region. The control material should be such that it does not become radioactive by the neutron capture. Cadmium has been found to be a good control material Sindh Textbook for Class XII P324
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