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A nuclear unit becoming critical means
Answer & Solution
Correct Answer:
Option
D
A nuclear unit becoming critical means Chain reaction that causes automatic splitting of the fuel nuclei has been established
when the reactor is in a configuration such that one neutron from each atom fissioned causes another fission and then the reactor is said to be critical
when the reactor is in a configuration such that one neutron from each atom fissioned causes another fission and then the reactor is said to be critical
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