A certain mass of hydrogen is changes to helium by the process of fusion. The mass defect in fusion reaction is `0.02866 u`. The energy liberated per `u` is (given `1 u = 931 MeV)`

Options

A. `6.675` MeV
B. `13.35` MeV
C. `2.67` MeV
D. `26.7` MeV

Answer

A

Explanation

As `"" _(1)^(2) H + "" _(1) f^(2) h to "" _(2) ^(4) He`
Here ,`Delta M = 0.02866u`
`therefore` The energy liberated per u is
`= (Delta M xx 931)/(4) MeV`
`= (0.02866xx 931)/(4) MeV= (26.7)/(4) MeV`
`=6.675MeV`