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A ray of monochromatic light is incident on one refracting face of a prism of angle . It passes through the prism and is incident on the other face at the critical angle. If the refractive index of the material of the prism is , the angle of incidence on the first face of the prism is

a)

b)

c)

d)


Question ID - 152824 | Toppr Answer

A ray of monochromatic light is incident on one refracting face of a prism of angle . It passes through the prism and is incident on the other face at the critical angle. If the refractive index of the material of the prism is , the angle of incidence on the first face of the prism is

a)

b)

c)

d)

1 Answer - 5876 Votes

3537

Answer Key : (b) -

(b)

From figure

From Snell’s law At



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