InterviewSolution
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InterviewSolution
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`M_p` denotes the mass of a proton and `M_n` that of a neutron. A given nucleus, of binding energy `B`, contains `Z` protons and `N` neutrons. The mass `M(N,Z)` of the nucleus is given by.A. `M(N,Z)=NM_n + ZM_P+ Bc^2`B. `M(N,Z)=NM_n + ZM_P- B//c^2`C. `M(N,Z)=NM_n + ZM_P+ B//c^2`D. `M(N,Z)=NM_n + ZM_P- Bc^2` |
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Answer» Correct Answer - B Mass of nucleus is slightly less than sum of masses of its constituents. This mass difference is equivalent to binding energy . `therefore Deltam=E/C^2=(ZM_P+NM_n)-M(N.Z)` Hence M (N,Z)=`NM_n+ZM_P-B/C^2` |
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