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Question: A beam of monochromatic light is incident on one face of an equilateral prism, the angle of incidenc...

A beam of monochromatic light is incident on one face of an equilateral prism, the angle of incidence being 550. If the angle of emergence is 460then the angle of minimum deviation is –

A

410

B

< 410

C

> 410

D

³ 410

Answer

< 410

Explanation

Solution

A = 600; i = 550; e = 460

\ i + e = A + d

550+ 460= 600 + d

Ž d = 410 dmin < d