The `alpha-` decay of `.^(210)Po` nuclei (in the ground state) is accompanied by emission of two groups of `alpha-`particles with kinetic energies 5.30 `&` 4.50 MeV. Following the emission of these particles the daughter nuclei are found in the ground `&` excited states. find the energy of gamma-quanta emtted by the excited nuclei.

The alpha -decay of nucleus X^(230) is accompanied by emission of two groups of alpha- particles-one group having alpha- particles of kinetic energy 6.7MeV and other having alpha -particles of kinetic energy 5.2 MeV. Following the emission of these particles the daugheter muclei are found in ground and exiceted states. find the energy of gamma photon. that is subsequenctly emitted by de-exictation of the excited daughter nuclei. Assume that nuclei of X^(230) are at rest.

Find the amount of heat generated by 1.00 mg of a Po^(210) preparation during the mean lifetime period of these nuclei of the emitted alpha-particles are known to possess the kinetic energy 5.3MeV and practically all daughter nuclei are formed directly in the ground state.

A stationary ._(82)^(200)Pb nucleus emits an alpha -particle with kinetic energy T_(alpha) = 5.77 MeV . Find the recoil velocity of a daughter nucleus. What fraction of the total energy liberated in this decay is accounted for by the recoil energy of daughter nucleus ?

Find the amount of heat generated by 1 mg of Po^210 preparation during the mean life period of these nuclei if the emitted alpha particles are known to possess kinetic energy 5.3 MeV and practically all daughter nuclei are formed directly in the ground state.

The amount of heat generated by 1.0 mg of a Po^(210) preparation during the one mean lifetime period of there nuclei, if the emitted a-particles are known to possess the kinetic energy 5.3 MeV is n(0.2 MJ) . Assume all daughter nuclei are partically formed in ground state. What is the value of n ?

In an alpha -decay, the kinetic energy of alpha -particles is 48 MeV and Q value of the reaction is 50 MeV . The mass number of the mother nucleus is (assume that daughter nucleus is in ground state)