How much energyh must a `gamma-` ray photon have to produce and anti-proton each having kinetic energy `10MeV` ? (`m_(p) = 1.007825` amu. Assumwe `1` amu `= 391MeV`.)

Momentum of photon having 1 MeV energy is

A free nucleus of mass 24 amu emits a gamma photon (when initially at rest). The energy of the photon is 7 MeV . The recoil energy of the nucleus in KeV is (Assuming 1 "amu"=931 MeV ).

A gamma ray photon of energy 1896 MeV annihilates to produce a proton-antiproton pair. If the rest mass of each of the particles involved be 1.007276 a.m.u approximately, find how much K.E these will carry?

A gamma ray photon of energy 1896 MeV annihilates to produce a photon-antiproton pair. If the rest mass of each of the particles involved be 1.007276 a.m.u aapproximately, find how much K.E these will carry?