1.

The mass of an atom of ""_(2)He^(4) is 4.0026 amu . The mass of a neutron and a proton are 1.0087 amu and 1.0078 amu respectively. The nuclear binding energy per nucleon is nearly

Answer»

7 MEV
5 MeV
10 MeV
14 MeV

Solution :Massdefect `=[2(1.0087+1.0078)-4.0026]` AMU
=0.0304 amu
Binding ENERGY per nucleon `=(28.32)/(4)` MeV
`=7.089` MeV `~= 7` MeV


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