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QNEET-2021-Ph-651: NEET 2021 Physics - Class 12 NEET-2021-Ph-651 Solution: A nucleus with mass number 240 breaks into two fragments each…
A nucleus with mass number 240 breaks into two fragments each of mass number 120 the binding per nucleon of unfragmented nuclei is 7.6 MeV while that of fragments is 8.5 MeV. The total gain in the Binding Energy in the process is: 216 MeV 0.9 MeV 9.4 MeV 804 MeV
Multiple Choice Options
- A 216MeV
- B 0.9MeV
- C 9.4MeV
- D 804MeV
Step-by-Step Verified Solution
Given binding energy per nucleon of X, Y & Z are
7.6MeV, 8.5MeV & 8.5MeV respectively,
Gain in binding energy is :
Q = Binding Energy of products _ Binding energy of reactants
= (120 _ 8.5 _ 2) _ (240 _ 7.6) MeV
= 216 MeV