MDCAT Physics MCQ #335

Which transition in a hydrogen atom emits the shortest wavelength photon?

MDCAT Physics MCQ #335

  1. Question 1

    Q1. Which transition in a hydrogen atom emits the shortest wavelength photon?

    • A) n=2 → n=1
    • B) n=3 → n=2
    • C) n=4 → n=3
    • D) n=5 → n=4

    Answer: n=2 → n=1

    Explanation: n=2→n=1 (Lyman) emits UV photons; B fails as visible wavelengths are longer.