The mass of proton is 1.0073 u and that of neutron is 1.0087 u (u = atomic mass unit). The binding energy of ₂⁴ He is (Given helium nucleus mass ≈ 4.0015 u.) (a) 0.0305 J (b) 0.0305 erg (c) 28.4 MeV (d) 0.061 u

Answer: (c). Δ m = 2(1.0073) + 2(1.0087) - 4.0015 = 0.0305 u BE = 0.0305 × 931 ≈ 28.4 MeV So the answer is (c) 28.4 MeV.

The mass of proton is 1.0073 u and that of neutron is 1.0087 u (u =… | NEET 2003 (AIPMT)

Q28NEET 2003 · AIPMTMedium

Mass Defect & Binding Energy

The mass of proton is 1.0073 u and that of neutron is 1.0087 u (u = atomic mass unit). The binding energy of ${}_{2}^{4}$ He is

(Given helium nucleus mass $\approx$ 4.0015 u.)

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Answer: (c)