The critical mass of a fissile material will be -
- AOne kilogram equivalent
- BMinimum mass required for chain reaction
- CRest mass equivalent to 10¹⁰ Joules
- DMore than one of the above
- ENone of the above
Show answer and explanation
Correct answer: (b) Minimum mass required for chain reaction
Explanation
The critical mass is the smallest mass of a fissile material (such as uranium-235) that can keep a self-sustaining chain reaction going.
With less, too many neutrons escape and the reaction dies out.