If the mass defect of `""_(4)^(9)X` is a.m.u., then binding energy per nucleon is (1 a.m.u. = 931.5 MeV):

Options

A. 9.315 MeV
B. 931.5 MeV
C. 83.8 MeV
D. 8.38 MeV.

Answer

A

Explanation

Binding energy `=0.09xx931.5` MeV
Binding energy per nucleon
`=(0.09xx931.5)/(9)` MeV,
=9.315 MeV