A) \[6.63\times {{10}^{-27}}k{{g}^{-}}m/s\]
B) \[2\times {{10}^{-27}}k{{g}^{-}}m/s\]
C) \[{{10}^{-27}}k{{g}^{-}}m/s\]
D) None of the above
Correct Answer: B
Solution :
\[P=n\left( \frac{E}{t} \right)\] \[10\,kWh=n\left[ \frac{200\,MeV}{t} \right]\] \[10\times {{10}^{3}}\times 60\times 60=n\times 200\times {{10}^{6}}\times 1.6\times {{10}^{-19}}\] \[(\because \,t=1)\] \[n=\frac{10\times {{10}^{3}}\times 60\times 60}{200\times {{10}^{6}}\times 1.6\times {{10}^{-19}}}\] \[n=\frac{36\times {{10}^{19}}}{200\times 1.6}\] \[n=\frac{360\times {{10}^{18}}}{200\times 1.6}\] \[n=1.125\times {{10}^{18}}\] \[n=11.25\times {{10}^{17}}\]
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