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Paragraph: A ray of light is incident nearly grazingly on face A B of a right angled prism as shown. It emerges out of face A C , as shown, e = Angle of emergence. Refractive indices of different media have been shown in the diagram. Choose the correct alternatives

Options

  1. A₁^2+ ^2 e = ₂^2
  2. B₂^2+ ^2 e = ₁^2
  3. C₁^2+ ^2 e = ₂^2
  4. DIf the ray just fails to emerge out of the face AC of the prism, for ₂= 3 , angle of refraction at face AB is

Correct answer

D. If the ray just fails to emerge out of the face AC of the prism, for ₂= 3 , angle of refraction at face AB is

Step-by-step solution

aligned & ₁ 90^ = ₂ & ₂ (90- )= e aligned Square and add we get ₁^2+ ^2 e = ₂^2

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