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 (c is the velocity of light) (a) M(N, Z) = NM n + ZM p + B/c 2 (b) M(N, Z) = NM n + ZM p - Bc 2 (c) M(N, Z) = NM n + ZM p + Bc 2 (d) M(N, Z) = NM n + ZM p – B/c 2

Question

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 (c is the velocity of light) (a) M(N, Z) = NM n + ZM p + B/c 2 (b) M(N, Z) = NM n + ZM p - Bc 2 (c) M(N, Z) = NM n + ZM p + Bc 2 (d) M(N, Z) = NM n + ZM p &ndash; B/c 2

Aditi Chauhan · Answer

(d) Mass defect = Mass of nucleus = Mass of proton + mass of neutron - mass defect

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