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Q. A nuclear reactor is said to have become 'critical' when

  • (A) It stops due to malfunctioning
  • (B) It starts emitting dangerous radioactive radiations
  • (C) It is shut down to avoid explosion
  • (D) It is ready to produce controlled energy
  • Correct Answer - Option(D)
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  • Filed under category Physics
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Explanation by: Admin

To produce controlled energy i.e energy at a controlled or steady rate, the number of fissions per second must be controlled and maintained at that rate. Excess neutrons should be absorbed by control roads like cadmium.

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