If M (A, Z), Mp,and,Mn denote the masses of the nucleus AZX proton and neutron respectively in units of u (1u=931.5MeV/C2) and BE represents its bonding energy in MeV, then -
A
M(A,Z)=ZMp+(A−Z)Mn−BE
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B
M(A,Z)=ZMp+(A−Z)Mn+BE/C2
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C
M(A,Z)=ZMp+(A−Z)Mn−BE/C2
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D
M(A,Z)=ZMp+(A−Z)Mn+BE
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Solution
The correct option is CM(A,Z)=ZMp+(A−Z)Mn−BE/C2 Mass defect Δm=ZMp+(A−Z)Mn−M(A,Z) Binding energy =ΔmC2 BE=[ZMp+(A−Z)Mn−M(A,Z)].C2 M(A,Z)=ZMp+(A−Z)Mn−BEC2