The binding energies of nuclei X and Y are `E_(1)` and `E_(2)` respectivley . Two atoms of X fuse to give one atom of Y and an energy Q is released. Then

Options

A. `Q=2E_(1) -E_(2)`
B. `Q=2E_(2)-2E_(1)`
C. `Qlt2E_(1) -E_(2)`
D. `Q gt2E_(2) -2E_(1)`

Answer

b

Explanation

During fusion, binding energy of daughter nucleus is always greater than the total binding energy of the parent nuclei. The difference of binding energied is released. Hence,
`Q=E_(2) -2E_(1)`.