A) \[M(A,Z)=Z{{M}_{p}}+(A-Z){{M}_{n}}-BE/{{c}^{2}}\]
B) \[M(A,Z)=Z{{M}_{p}}+(A-Z){{M}_{n}}+BE\]
C) \[M(A,Z)=Z{{M}_{p}}+(A-Z){{M}_{n}}-BE\]
D) \[M(A,Z)=Z{{M}_{p}}+(A-Z){{M}_{n}}-BE/{{c}^{2}}\]
Correct Answer: A
Solution :
Binding energy of a nucleus containing N neutrons and Z protons is \[BE=[N{{M}_{n}}+Z{{M}_{p}}-M(A,Z)]{{c}^{2}}\] \[\Rightarrow \]\[\frac{BE}{{{c}^{2}}}=N{{M}_{n}}+Z{{M}_{p}}-M(A,Z)\] \[\Rightarrow \]\[\frac{BE}{{{c}^{2}}}=(A-Z){{M}_{n}}+Z{{M}_{p}}-M(A,Z)\] (as N = A - Z) \[\Rightarrow \]\[M(A,Z)=Z{{M}_{p}}+(A-Z){{M}_{n}}-BE/{{c}^{2}}\]You need to login to perform this action.
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