Q. A nuclear reactor is said to have become 'critical' when
✅ Correct Answer: (D)
It is ready to produce controlled energy
Explanation: 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.
Explanation by: Team MCQ Buddy
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.