List of top Physics Questions on Nuclear physics asked in UP Board XII

Explain why:
[(i)] Lighter nuclei fuse together to form a heavy nucleus.
[(ii)] A heavy nucleus splits into two lighter nuclei.
[(iii)] Energy is released in both phenomenon of nuclear fission and nuclear fusion.

What is $Q$-value of a nuclear reaction? Find (i) nature, (ii) $Q$-value, and (iii) mass defect of nuclear reaction: \[ 2({}^1H^2) \; \longrightarrow \; {}^4He^2 + g \] if the binding energy per nucleon of deuterium and helium are $1.25 \, \text{MeV}$ and $7.2 \, \text{MeV}$ respectively.

The radius of nucleus is expressed as $R = R_0 A^{1/3}$, where $A$ is mass number and $R_0 = 1.2 \times 10^{-15} \, \text{m}$. Prove that the density of nucleus does not depend upon the mass number $A$.

The isotones pair of the following are: