Two photons are produced when an electron and a positron
PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation
Problem
Two photons are produced when an electron and a positron, both at rest before interaction, annihilate each other. The energy of each photon is closest to
(a) 0.661 MeV
(b) 0.511 MeV
(c) 1.022 MeV
(d) 0.255 MeV