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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)He^(4)` is (mass of helium nucleus `=4.0015 u`)
A. `0.0305 J`
B. `0.0305 erg`
C. `28.4 MeV`
D. `0.061 u`

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Best answer
Correct Answer - C
`._(2)^(4)He -= 2n + p`
`BE = [2(1.0073 + 1.0087) - 4 .0015]931.5MeV`

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