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NEET2008PhysicsNuclear PhysicsActual

46. If M(A ; Z), M_p and M_n denote the masses of the nucleus _Z^A X , proton and neutron respectively in units of u (1 u =931.5 MeV / C ^2 ) and BE represents its bonding energy in MeV , then

Options

  1. AM(A, Z)=Z M_p+(A-Z) M_n+ BE / C^2
  2. BM(A, Z)=Z M_p+(A-Z) M_n- BE / C ^2
  3. Caligned & M(A, Z)=Z M_p+(A-Z) M_n+B E aligned
  4. Daligned & M(A, Z)=Z M_p+(A-Z) M_n-B E aligned

Correct answer

B. M(A, Z)=Z M_p+(A-Z) M_n- BE / C ^2

Step-by-step solution

BE = [ ZM _ p +( A - Z ) M _ n - M ( A , Z ) ] C ^2

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