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Which of the following forms the basis of a nuclear reactor?(a) Uncontrolled chain reaction(b) Fast nuclear reaction(c) Controlled chain reaction(d) Catalyst controlled nuclear reactionI have been asked this question by my college professor while I was bunking the class.This key question is from Nuclear Force topic in division Nucleus of Physics – Class 12

Answer»

Correct CHOICE is (c) Controlled CHAIN reaction

The explanation is: In a chain reaction, the fast-moving neutrons are absorbed by certain substances KNOWN as moderators such as heavy water, then the NUMBER of fissions can be controlled and the chain reaction in such a case is known as a controlled chain reaction. This forms the BASIS of a nuclear reactor.



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