Light energy emitted by stars is due to

How much mass of uranium must be destroyed per minute to operate a nuclear reactor of $600\,MW$?

In the Sun,the important source of energy is

Fission of nuclei is possible because the binding energy per nucleon in them

In a nuclear fusion process,a certain mass of hydrogen is converted into helium,resulting in a mass defect of $0.02866 \, u$. The energy released per $1 \, u$ of mass formed is ......... $MeV$. (Given $1 \, u = 931 \, MeV$)

Statement $1$: Energy is released during the fission of heavy nuclei or the fusion of light nuclei.
Statement $2$: Binding energy per nucleon increases with an increase in $Z$ for heavy nuclei,whereas it decreases with an increase in $Z$ for light nuclei.