In nuclear reactor, reactor will become supercritical and even explode, if multiplication factor (k)
A
is less than 1
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B
is greater than 1
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C
is equal to 1
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D
k is irrelevant
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Solution
The correct option is B is greater than 1 The multiplication factor (k) is an important reactor parameter and is the ratio of number of neutrons present at the beginning of a particular generation to the number present at the beginning of the next generation. It is a measure of the growth rate of the neutrons in the reactor. For k=1, the operation of the reactor is said to be critical. Note: If becomes greater than one, the reaction rate and the reactor power increases exponentially. Unless the factor k is brought down very close to unity, the reactor will become supercritical and can even explode.