Physics 0625 · IGCSE · Light

Light — practice question

The diagram illustrates a ray of light travelling from glass into air, at the critical angle. Which angles are the angle of incidence and the angle of refraction?

  • Aangle of incidence W, angle of refraction Y
  • Bangle of incidence W, angle of refraction Z
  • Cangle of incidence X, angle of refraction Y
  • Dangle of incidence X, angle of refraction Z

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