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Physics (AS & A Level) · May / June 2023 · Paper 12 · Question 23

9702Electromagnetic spectrum

A beam of visible light is in a vacuum. What could be the frequency of the light?

  1. A5.0 × 10^5 Hz
  2. B5.0 × 10^8 Hz
  3. C5.0 × 10^11 Hz
  4. D5.0 × 10^14 Hz

As printed in the paper

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Correct answer: D. 5.0 × 10^14 Hz

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