Assertion : For nuclear reactor, it is desirable to have $k=1$. Reason : Sustained chain reaction occur at…
Assertion : For nuclear reactor, it is desirable to have $k=1$.
Reason : Sustained chain reaction occur at this critical condition.
If both assertion and reason are true and reason is the correct explanation of assertion.
If both assertion and reason are true but reason is not the correct explanation of assertion.
If assertion is true but reason is false.
If both assertion and reason are false.
Solution
Multiplication factor $(k)$ is a measure of the growth rate of neutrons in the reactor. For $k=1$; the operation of the reaction is said to be critical condition at which sustained chain reaction occurs. If $k$ becomes greater than the reaction rate and reactor power increases exponentially.