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If the binding energy of N 14 is 7 . 5   MeV per nucleon and that of N 15 is 7 . 7   MeV per nucleon. then the energy required to remove a neutron from N 15 is

Options

  1. A5 . 25   MeV
  2. B0 . 2   MeV
  3. C10 . 5   MeV
  4. D0 . 4   MeV

Correct answer

C. 10 . 5   MeV

Step-by-step solution

The total binding energy, N 14 = 7 . 5 × 14   MeV N 15 = 7 . 7 × 15   MeV The energy required to remove a neutron from N 15 , E = BE   N 15 - BE   N 14 E = 7 . 7 × 15 - 7 . 5 × 14   MeV ⇒     E = 10 . 5   MeV

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