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The mass of an atom of ""(2)He^(4) is 4....

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

A

7 MeV

B

5 MeV

C

10 MeV

D

14 MeV

Text Solution

Verified by Experts

The correct Answer is:
A
Mass defect `=[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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