Question

Assertion (A) : Nuclear fission reactions are responsible for energy generation in the Sun. Reason (R) : Light nuclei fuse together in the nuclear fission reactions.

Draw a diagram to show the variation of binding energy per nucleon with mass number for different nuclei and mention its two features. Why do lighter nuclei usually undergo nuclear fusion ?

Distinguish between nuclear fission and fusion giving an example of each.

Explain the release of energy in nuclear fission and fusion on the basis of binding energy per nucleon curve.