Q 12-13-079JEE MainJEE Main 2023 (8 Apr, Shift 1)Easy
A nucleus with mass number $242$ and binding energy per nucleon as $7.6$ MeV breaks into two fragments each with mass number $121$. If each fragment nucleus has binding energy per nucleon as $8.1$ MeV, the total gain in binding energy is ______ MeV.
Numerical value type. Enter your answer.
Answer: 121
Gain $=242\times(8.1-7.6)=121$ MeV.
Solution by Sreeraj P, M.Sc Physics