The minimum frequency of a `gamma`-ray that causes a deutron to disintegrate into a poton and a neutron is `(m_(d)=2.0141 am u, m_p=1.0078 am u, m_n=1.0087 am u.)`.

Find the minimum energy that a gamma -ray must have to give rise to an electron -positron pair. {:("Mass of electron",= 0.00055 am u,),("Mass of positron",= 0.00055 am u,):}

Find the binding energy of deuteron in MeV. Given that m_p = 1.00728 u m_n = 1.00865 u and m_D = 2.01412 mu .

Calculate the density of hydrogen nucleus in SI units. Given R_(0) = 1.1 fermi and m_(p) = 1.007825 am u .

The binding energy of alpha -particle is ( if m_p=1.00785u , m_n=1.00866u and m_alpha=4.00274u )

The binding energy of alpha -particle is ( if m_p=1.00785u , m_n=1.00866u and m_alpha=4.00274u )

Calculate packing fraction of alpha particle form the following date: m_(alpha)=4.0028a.m.u., m_(p)=1.00758a.m.u. , and m_(n)=1.00897 a.m.u.

Find the binding energy of an alpha -particle from the following data. Mass of helium nulceus =4.001235 am u Mass of proton =1.007277 am u Mass of neutron =1.00866 am u (take 1 amu=931.4813 MeV) .

Suppose a moving hydrogen atmo makes a head on inelastic collision with a stationary hydrogen atmo. Before collision both atoms are in ground state and after collision they move together. What is the minimum velocity of the moving hydrogen atom if one of the atom is to be given the minimum excitation energy after the collision ? (m_(H) = 1.0078 am u, 1 am u = 1.66 xx 10^(-27) kg)

Calculate the binding energy per nucleon for C^(12),N^(14), O^(16) , and comment on their relative magnitudes. Masses of proton and neutron are 1.0078 and 1.0087m_(u) , respectively. (m_(u)=931MeV)

If m ("_7^14N) =14.00307u, calculate the binding energy of the nitrogen nucleus in MeV. mH=1.00783 a.m.u., m n=1.0087 a.m.u.; m N=14.00307 a.m.u.