is angle of incidence and angle of emergence always equal in prism ??????
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Is angle of emergence equal to theangle of deviation in the case of refraction of light through a triangular glass prism? ... A ray of light passes through the equilateral prism such thatangle of incidence is equal to theangle of emergence, if angle of incidence is 45°.
sanjana188:
only this is the case??
if angle of incidence is 45°
??
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No they will ne equal only when the refracted ray will be parallel to the base of the prism..
hope it helps
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