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Physics
Among the following one is wrong
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Q. Among the following one is wrong
Nuclei
A
The energy of thermal neutrons is about 25 meV
0%
B
In a nuclear reactor, when neutrons multiplication factor, K = 1 then the reaction is said to be critical
0%
C
$\,_{92}U^{235}$ undergoes fission by bombardment of high energy neutron
75%
D
On average 2.5 neutrons are emitted.per fission of $\,_{92}U^{235}$
25%
Solution:
Free $\to$ Speed $\to 0.025\,ev$
$25\,mev$
$[K= \frac{n_N}{n_(n+1)} = 1]$