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JEE Main & Advanced Physics Nuclear Physics And Radioactivity Question Bank Nucleus, Nuclear Reaction

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    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]

    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)            \[1.56\times {{10}^{+17}}{{s}^{-1}}\]

    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.


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