-
The mass of a 3Li7 nucleus is 0.042 u less than the sum of the masses of all its nucleons. The binding energy per nucleon of 3Li7 nucleus is nearly
-
- 46 MeV
- 5.6 MeV
- 3.9 MeV
- 23 MeV
Correct Option: B
B.E. = 0.042 × 931 ≃ 42 MeV
Number of nucleons in
| Li is 7. | 3 |
∴ B.E./ nucleon = 42/7 = 6 MeV ≃ 5.6 MeV
