The binding energy per nucleon for deuteron and helium are 1.1 MeV and 7.0 MeV. The energy released when two deuterons fuse to form a helium nucleus is :

Options

A. 23.6 MeV
B. 2.2 MeV
C. 30.2 MeV
D. 3.6 MeV

Answer

A

Explanation

Ratio of n/p will decrease
`" "2_(1)H^(2) rarr ""_(2)He^(4)+Q`
Energy released
`" "Q=4 times 7-4 times 1.1=23.6 MeV`