A) \[{{\left( \frac{A}{A+1} \right)}^{2}}E\]
B) \[\frac{A}{{{\left( A+1 \right)}^{2}}}E\]
C) \[{{\left( \frac{A-1}{A+1} \right)}^{2}}E\]
D) \[\frac{A-1}{{{\left( A+1 \right)}^{2}}}E\]
Correct Answer: C
Solution :
The fraction of total energy retained by nucleus \[{{\left( \frac{\Delta K}{K} \right)}_{retained}}={{\left( \frac{{{m}_{2}}-{{m}_{1}}}{{{m}_{1}}+{{m}_{2}}} \right)}^{2}}\] \[={{\left( \frac{A-1}{1+A} \right)}^{2}}\] \[\therefore \] Kinetic energy retained by neutron after collision is \[{{\left( \frac{A-1}{A+1} \right)}^{2}}E\]You need to login to perform this action.
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