MHT CET 2022 Physics question
The refracting angle of a glass prism is 30. A ray in incident on one of the faces perpendicular to it. The angle of deviation between the incident ray and that leaves the prism is
(Refractive index of glass = 1.5) (sin 30 = 0.5, sin (48.6) = 0.75)
Answer: (D)
Solution
The ray enters the first face normally, so it goes undeviated and strikes the second face at an angle of incidence equal to the prism angle, . Snell's law at the second face: \sinr_2\sin\sin\sin$30° =
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