Atoms And Nuclei Question 224
Question: Energy released in the fission of a single $ _{92}U^{235} $ nucleus is 200 MeV. The fission rate of a $ _{92}U^{235} $ fuelled reactor operating at a power level of 5W is [CBSE PMT 1993]
Options:
A) $ 1.56\times {{10}^{+10}}{{s}^{-1}} $
B) $ 1.56\times {{10}^{+11}}{{s}^{-1}} $
C) $ 1.56\times {{10}^{+16}}{{s}^{-1}} $
D) $ 1.56\times {{10}^{+17}}{{s}^{-1}} $
Show Answer
Answer:
Correct Answer: B
Solution:
$ \frac{Energy}{Fission}=200\ MeV=200\times 10^{6}\times 1.6\times {{10}^{-19}}J $
Fission rate $ =\frac{5}{200\ MeV}=1.56\times 10^{11} $ fission/sec.
