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In nuclear reactors, what are the controlling rods made of?

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in Physics – Class 12 by (135k points)
In nuclear reactors, what are the controlling rods made of?

(a) Cadmium

(b) Graphite

(c) Stainless steel

(d) Plutonium

I had been asked this question by my school principal while I was bunking the class.

Query is from Nuclear Energy in chapter Nucleus of Physics – Class 12

1 Answer

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Best answer
The correct option is (a) Cadmium

The explanation is: In nuclear reactors, cadmium rods are used as control rods. They are used to absorb the extra nucleons and to absorb neutrons, making them unavailable to cause fission. The other options are not valid.

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