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I want its complete solution

Asked by Ankur Goyal 7th October 2013, 3:26 PM
Answered by Expert
Answer:
At angle of minimum deviation, we have angle of incidence equal to angle of emergence, that is, i = e.
Now, angle of incidence, emergence, prism angle and angle of minimum deviation are related as
Dm = i + e - A = 2i - A = 90 - A
Thus, Dm + A = 90
 
Now, the refractive index of prism is given as;
 
 
Thus, angle of minimum deviation is
 
Dm = 90 - 60 = 30
Answered by Expert 7th October 2013, 5:26 PM
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