Two spherical nuclei have mass numbers $216$ and $64$ with their radii $R_1$ and $R _2$ respectively. The ratio, $\frac{R_1}{R_2}$ is equal to
$3:2$
$1:3$
$1:2$
$2:3$
If the nucleus ${}_{13}^{27}Al$ has a nuclear radius of about $3.6\,\, fm,$ then ${ }_{32}^{125} Te$ would have its radius approximately as .......$fm$
The ratio of mass densities of nuclei of $^{40}Ca$ and $^{16}O$ is close to
A positron is emitted from ${ }^{23} \mathrm{Na}_{11}$. The ratio of the atomic mass and atomic number of the resulting nuclide is
Given the mass of iron nucleus as $55.85\,u$ and $A=56$, find the nuclear density?
The nuclear force between two nucleons is explained by