MDCAT Chemistry MCQ #885

How does the de Broglie wavelength of an electron compare with that of a proton moving at the same velocity?

MDCAT Chemistry MCQ #885

  1. Question 1

    Q1. How does the de Broglie wavelength of an electron compare with that of a proton moving at the same velocity?

    • A) Electron has longer wavelength
    • B) Proton has longer wavelength
    • C) Same wavelength for both
    • D) Depends on their kinetic energy

    Answer: Electron has longer wavelength

    Explanation: Electron's smaller mass gives longer wavelength (λ = h/mv). Proton mass is larger.