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PhysicsNEET 2021Nuclear size, mass defect, binding energy

Nuclei

A nucleus with mass number 240 breaks into two fragments each of mass number 120. The binding energy per nucleon of the unfragmented nucleus is 7.6 MeV while that of the fragments is 8.5 MeV. The total gain in binding energy in the process is:

  1. A.0.9 MeV
  2. B.9.4 MeV
  3. C.804 MeV
  4. D.216 MeV✓

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