MDCAT Physics MCQ #2571

A photon with wavelength λ collides with an electron at rest. What formula governs the change in photon wavelength after scattering?

MDCAT Physics MCQ #2571

  1. Question 1

    Q1. A photon with wavelength λ collides with an electron at rest. What formula governs the change in photon wavelength after scattering?

    • A) Δλ = h/(mc)(1 - cosθ)
    • B) Δλ = h/(mc)(1 + cosθ)
    • C) Δλ = 2h/(mc)
    • D) Δλ = h²/(mcλ)

    Answer: Δλ = h/(mc)(1 - cosθ)

    Explanation: Compton effect formula uses (1 - cosθ). Option B incorrectly adds cosθ.