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                                    6. A ray P0 is incidentnormally on the face PAB of a triangularprism of refractingangle of 60° made ofatransparent materialof refractive index 2//3 as shown in thefigure. Trace the path of the ray as itpasses through the prism. Also, calculatethe angle of emerdeviation, Delhi 2014Cgence and angle of | 
                            
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Answer»  If iCis the critical angle for the prism/ material, Angle of incidence at face AC of the prism = 60° Hence, refracted ray grazes the surface AC. => Angle of emergence = 90° => Angle of deviation = 30°. Like my answer if you find it useful!  | 
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