Among the following one is wrong

Question

Among the following one is wrong (A) The energy of thermal neutrons is about 25 meV (B) In a nuclear reactor, when neutrons multiplication factor, K = 1 then the reaction is said to be critical (C)  92U235 undergoes fission by bombardment of high energy neutron (D) On average 2.5 neutrons are emitted.per fission of 92U235

Tardigrade Admin · Accepted Answer

Free → Speed → 0.025 ev 25 mev [K= (nN/n(n+1)) = 1]

Q. Among the following one is wrong

The energy of thermal neutrons is about 25 meV

In a nuclear reactor, when neutrons multiplication factor, K = 1 then the reaction is said to be critical

$_{92} U^{235}$ undergoes fission by bombardment of high energy neutron

On average 2.5 neutrons are emitted.per fission of $_{92} U^{235}$

Free $\to$ Speed $\to 0.025 e v$
$25 m e v$
$[K = \frac{n _{N}}{n _{(} n + 1 )} = 1]$

Q. Among the following one is wrong

The energy of thermal neutrons is about 25 meV

In a nuclear reactor, when neutrons multiplication factor, K = 1 then the reaction is said to be critical

92​U235 undergoes fission by bombardment of high energy neutron

On average 2.5 neutrons are emitted.per fission of 92​U235

Free → Speed →0.025ev 25mev [K=n(​n+1)nN​​=1]

$_{92} U^{235}$ undergoes fission by bombardment of high energy neutron

On average 2.5 neutrons are emitted.per fission of $_{92} U^{235}$

Free $\to$ Speed $\to 0.025 e v$
$25 m e v$
$[K = \frac{n _{N}}{n _{(} n + 1 )} = 1]$