InterviewSolution
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InterviewSolution
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A ray `PQ` incident on face `AB` of a prism `ABC`, as shown in Fig., emerges from the face `AC` such that `AQ = AR`. Draw the ray diagram showing the pasage of the ray through the prism. If the angle of prism is `60^@` and refractive index of the material of the prism is `sqrt(3) ,` determine the values of angle of incidence and angle of deviation. . |
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Answer» As the refracted ray passes such that `AQ = AR`, it must go parallel to the base of the prism suffering minimum deviation. `r = A//2 =(60)/(2) = 30^@` `mu = (sin i)/(sin r) = (sin i)/(sin 30^@)` `:. sin i= mu sin 30^@ = sqrt(3) xx (1)/(2)` `i= 60^@` As `i+ e = A + delta_m` `2 i= 60^@ + delta_m, delta_m = 2 [email protected] = 120^@ - 60^@` `delta_m = 60^@`. |
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