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Physics (AS & A Level) · Feb / March 2023 · Paper 12 · Question 23

9702Electromagnetic spectrum

What is the approximate range of frequencies of electromagnetic radiation visible to the human eye?

  1. A(430–750) kHz
  2. B(430–750) MHz
  3. C(430–750) GHz
  4. D(430–750) THz

As printed in the paper

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Correct answer: D. (430–750) THz

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