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CBSE Class 10 Answered

Sir , l have a doubt about refraction of glass prism. 

 

 

Asked by tanushrimanish7234.bmps | 26 Apr, 2020, 03:50: PM
Expert Answer

i- angle of incidence

r and r'-angles of refractions

 - angle of deviation

Consider light passing through a prism ABC as shown

As shown, the angles of incidence and refraction at the first face AB are i and r, while the angle of incidence (from glass to air) at the second face AC is r' and the angle of emergence i'. The angle between the emergent ray RS and incident ray direction PQ is called the angle of deviation, δ .



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