Answer :


a) Maximum energy of positron refers to zero K.E of the neutrino


So when the energy of positron is 0.150 MeV as energy is conserved,


Energy of neutrino




b) For a photon,


, where c = speed of light


Energy of neutrino in SI = 0.500 × 106 × 1.6 × 10-19 J


Momentum kgms-1


= 2.67 × 10-22 kgms-1


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