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KVPY2012PhysicsRay Optics

In the figure below, PQRS denotes the path followed by a ray of light as it travels through three media in succession. The absolute refractive indices of the media are ₁, ₂ and ₃ respectively. (The line segment RS ' in the figure is parallel to PQ ).

Options

  1. A₁> ₂> ₃
  2. B₁= ₃ < ₂
  3. C₁ < ₂ < ₃ ,
  4. D₁ < ₃ < ₂

Correct answer

D. ₁ < ₃ < ₂

Step-by-step solution

₁ < ₃ < ₂

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