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Physics · Oct / Nov 2024 · Paper 12 · Question 22

5054Refraction of light

The diagram shows a ray of light travelling from air to medium Q. What is the critical angle for the boundary between medium Q and air?

  1. A57.5°
  2. B58.0°
  3. C60.9°
  4. D61.6°

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Correct answer: C. 60.9°

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