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Quantum physics

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Question 3

Which sequence shows the physical energies listed below in increasing order of magnitude?

  1. The energy of an infrared photon with a wavelength of 6.2 μm6.2\ \mu\text{m}6.2 μm.
  2. The change in kinetic energy of an electron accelerated through a potential difference of 0.25 V.
  3. The kinetic energy of a neutron with a speed of 4.5 km s-1.
A

1, 3, 2

B

3, 1, 2

C

3, 2, 1

D

2, 1, 3

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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