A positron with kinetic energy 1 MeV and an electron with

Last updated: 6/9/2023

A positron with kinetic energy 1 MeV and an electron with kinetic energy 1MeV meet each ot moving in opposite directions They annihilate each other by emitting two photons If the rest energy of an electron is 0 51 MeV the wavelength of each photon is A 5 1 10 B 10 2 10 C 8 2 10 D 6 2 10