The minimum energy of each photon in pair production of an electron–positron pair (by a single photon near a nucleus) is:

  1. 0.511 MeV
  2. 1.02 MeV
  3. 938 MeV
  4. 0.1 MeV
Answer

B) 1.02 MeV

2mec^2. SLO P-11-F-28 · Understanding

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