Hydrogen nucleus combines to form helium then energy is released.
Binding energy/nucleon of `He` is greater than hydrogen.

Options

A. If both A and R are true and R is the correct explanation of A.
B. If both A and R are true but R is not the correct explanation of A.
C. If A is true but R is false
D. If A is false but R is true.

Answer

A

Explanation

A nuclear reaction in which two ligher nuclei are fused together to form a heavier nuclei is called nuclear fusion. In such a process, more stable nuclei come into existence blinding energy per nucleon increases . Fusion reactions are highly exothermic because of loss of mass during fusion e.g.
`""_(1)^(2)H + ""_(1)^(2)H to ""_(2)^(4)He+24.9 MeV`