The process that mainly takes place in stars to produce energy is:

The most suitable element for nuclear fission is the element with an atomic number near

Assume that the nuclear binding energy per nucleon $(B/A)$ versus mass number $(A)$ is as shown in the figure. Use this plot to choose the correct choice$(s)$ given below:
$(A)$ Fusion of two nuclei with mass numbers lying in the range of $1 < A < 100$ will release energy.
$(B)$ Fusion of two nuclei with mass numbers lying in the range of $100 < A < 200$ will release energy.
$(C)$ Fission of a nucleus lying in the mass range of $100 < A < 200$ will release energy when broken into two equal fragments.
$(D)$ Fission of a nucleus lying in the mass range of $200 < A < 260$ will release energy when broken into two equal fragments.

How much energy is produced by the fission of $1\, kg$ of uranium?

Which reaction is not part of the proton-proton cycle?

Heavy water is used as a moderator in a nuclear reactor because