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Physics (AS & A Level) · Oct / Nov 2020 · Paper 12 · Question 26

9702Electromagnetic spectrum

Part of the electromagnetic spectrum is shown. What is the name of the shaded region and what is the order of magnitude of a wavelength of a wave from this region?

  1. Aname: infrared; wavelength / m: 10–5
  2. Bname: infrared; wavelength / m: 10–8
  3. Cname: ultraviolet; wavelength / m: 10–5
  4. Dname: ultraviolet; wavelength / m: 10–8

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Correct answer: A. name: infrared; wavelength / m: 10–5

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