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Physics (AS & A Level) · May / June 2021 · Paper 13 · Question 26

9702Electromagnetic spectrum

Gamma-rays, microwaves, visible light and X-rays are four regions of the electromagnetic spectrum. Which list shows these four regions in order of increasing wavelength?

  1. Amicrowaves → visible light → X-rays → gamma-rays
  2. Bgamma-rays → X-rays → visible light → microwaves
  3. CX-rays → gamma-rays → microwaves → visible light
  4. Dmicrowaves → visible light → gamma-rays → X-rays

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Correct answer: B. gamma-rays → X-rays → visible light → microwaves

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