MDCAT Physics MCQ #2556

The de Broglie wavelength of an electron moving at 10^6 m/s is approximately

MDCAT Physics MCQ #2556

  1. Question 1

    Q1. The de Broglie wavelength of an electron moving at 10^6 m/s is approximately

    • A) 0.73 nm
    • B) 1.23 nm
    • C) 0.123 nm
    • D) 7.3 nm

    Answer: 0.73 nm

    Explanation: λ = h/mv = (6.63×10^-34)/(9.11×10^-31 × 10^6) = 0.73 nm. Other options miscalculate.