A gamma photon with energy above 1.02 MeV near a nucleus can produce:

  1. a neutron
  2. an electron–positron pair
  3. a proton
  4. an alpha particle
Answer

B) an electron–positron pair

2mec^2 = 1.02 MeV. SLO P-11-F-19 · Understanding

Physics MCQ · More Nuclear and Particle Physics MCQs · Practise