The mass defect for the nucleus of helium is `0.0303` a.m.u. What is the binding energy per nucleon for helium in `MeV` ?

Options

A. 1
B. 28
C. 7
D. 4

Answer

C

Explanation

The binding energy of a nucleus is also defined as the energy equivalent of the mass defect of the nucleus ` = (Deltam)c^2`
`therefore ("Binding energy ")/("Nucleon") = ("mass defect" (Deltam) xxc^2)/("No. of nucleon (A)")`
`= (0.0303xx931)/(4) = 7 MeV`