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Quantum physics

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Question 2

An electron has a de Broglie wavelength equal to the wavelength of an X-ray photon of frequency 1.5 × 1019 Hz.

What is the momentum of the electron?

A

9.9×10−15 kg m s−19.9 \times 10^{-15} \text{ kg m s}^{-1}9.9×10−15 kg m s−1

B

1.3×10−22 kg m s−11.3 \times 10^{-22} \text{ kg m s}^{-1}1.3×10−22 kg m s−1

C

3.3×10−23 kg m s−13.3 \times 10^{-23} \text{ kg m s}^{-1}3.3×10−23 kg m s−1

D

1.3×10−44 kg m s−11.3 \times 10^{-44} \text{ kg m s}^{-1}1.3×10−44 kg m s−1

Markscheme

Quantum physics Questions

  1. A Level
  2. /Physics
  3. /Quantum physics

26 exam-style questions on OCR A A Level Physics Quantum physics, covering Photons, The photoelectric effect, and Wave–particle duality. Each one has a worked solution and a mark scheme showing where the marks go.

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