1.

A ray of light incident at an angle of incidence i_(1) passes through an equilateral glass prism such that the refracted ray inside the prism is parallel to its base and emerges at an angle of emergence i_(2). (i) How is the angle of emergence 'i_(1)' related to the angle of incidence 'i_(1)' ? (Ii) What can you say about the angle of deviation in such a situation ?

Answer»


ANSWER :(i) `i_(2)=i_(1)`
(ii) angle of deviation is MINIMUM.


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