MDCAT Physics MCQ #2542

When a positron and an electron collide, they undergo

MDCAT Physics MCQ #2542

  1. Question 1

    Q1. When a positron and an electron collide, they undergo

    • A) Annihilation
    • B) Pair production
    • C) Compton scattering
    • D) Bremsstrahlung

    Answer: Annihilation

    Explanation: Annihilation converts matter into energy; typically produces two 0.511 MeV gamma photons.