Q49 / 66 · JEE Advanced 2007 (Paper 1) · Physics
In the options given below, let $E$ denote the rest mass energy of a nucleus and $n$ a neutron. The correct option is
- Correct answerA$E\left({ }_{92}^{236} \mathrm{U}\right)>E\left({ }_{53}^{137} \mathrm{I}\right)+E\left({ }_{36}^{97} Y\right)+2 E(n)$
- B$\left.E{ }_{92}^{236} \mathrm{U}\right) < E\left({ }_{53}^{137} \mathrm{I}\right)+E\left({ }_{39}^{97} Y\right)+2 E(n)$
- C$E\left({ }_{92}^{236} \mathrm{U}\right) < E\left(5_{56}^{140} \mathrm{Ba}\right)+E\left({ }_{36}^{94} \mathrm{Kr}\right)+2 E(n)$
- D$E\left(9_{92}^{236} \mathrm{U}\right) < E\left(5_{56}^{140} \mathrm{Ba}\right)+E\left({ }_{36}^{94} \mathrm{Kr}\right)+2 E(n)$
Solution
Rest mass of parent nucleus should be greater than the rest mass of daughter nuclei. Therefore, option (a) will be correct.
Hence, the correct answer is option: 'A'.