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Physics · Oct / Nov 2025 · Paper 11 · Question 23

5054Refraction of light

A ray of light travels from X to Y along an optical fibre. The angle of incidence at Y is greater than the critical angle. In which direction does the ray of light travel after reaching point Y?

  1. Adirection A
  2. Bdirection B
  3. Cdirection C
  4. Ddirection D

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Correct answer: C. direction C

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