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in Physics by (138k points)
A ray of light is incident normally on one refracting surface of an equilateral prism. If the refractive index of the material of the prism is 1.5, then
(a) the emergent ray is deviated by 30°
(b) the emergent ray is deviated by 60°
(c) the emergent ray just graces the second reflecting surface
(d) the ray undergoes total internal reflection at second refracting surface
(e) the ray emerges normally from the second refracting surface

1 Answer

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Best answer

Angle of incidence > critical angle, hence TIR takes place

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