If the binding energy of the deuterium is $2.23 \, MeV$, the mass defect in $a.m.u.$ is:

If an electron and a positron annihilate,then the energy released is

$m_{p}$ and $m_{n}$ are the masses of a proton and a neutron, respectively. For an element of mass $M$ having $Z$ protons and $N$ neutrons, which of the following is true?

The value of $1 \, \text{a.m.u.}$ is equivalent to how many $MeV/c^2$?

The energy equivalent of $0.5\, g$ of a substance is $........\, J$.

$M_n$ and $M_p$ represent the mass of a neutron and a proton, respectively. If an element having atomic mass $M$ has $N$ neutrons and $Z$ protons, then the correct relation is: