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A ray of light is incident normally on one of the faces of prism of apex angle 30°and refractive index √3 the angle of deviation of the ray is ...degreea)30° b)45° c)15° d)22.5

A ray of light is incident normally on one of the faces of prism of apex angle 30°and refractive index √3 the angle of deviation of the ray is ...degreea)30° b)45° c)15° d)22.5

Grade:12th pass

1 Answers

Arun
25758 Points
4 years ago
Dear student
 A = 30°
μ = √2
(For thin prisms) We have the relation δ = (μ − 1)A
= (√3 − 1) x 30°
= 21.96°
Hence option D is correct
Regards
Arun (askIITians forum expert)

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