Physics · Nuclear Physics
A γ-ray photon of energy 5.0 MeV undergoes pair production. The electron (e-) and positron (e+) produced move in opposite directions with equal kinetic energy. Assuming the rest mass energy of an electron/positron is 0.511 MeV, what is the kinetic energy of the electron or positron?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11.989 MeV✓
- 22.989 MeV
- 33.989 MeV
- 44.989 MeV
Correct answer
1.989 MeV
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