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NTA Abhyas JEE Main2020PhysicsWave OpticsPractice

In the figure shown plane waves are refracted from air to water using Huygen's principle a , b , c , d , e are lengths on the diagram. The refractive index of air with respect to water is in the ratio.

Options

  1. Aa e
  2. Bb e
  3. Cb d
  4. Dd b

Correct answer

D. d b

Step-by-step solution

sin  i sin  r = b c d c = b d μ a,w = sin  r sin  i

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