Sat January 22, 2011 By: Manoj Kumar

A ray of light incident on an equilateral glass prism (refractive index =root 3)moves parallel to base of the prism inside it ? What is the angle of incidence for this ray ? mam the answer to this question is 60 degrees.

Expert Reply
Sat January 22, 2011
Dear student
Dear student
In min deviation position,
Dm = (n-1)A = (Sq.rt 3 - 1)60 = 44
Also in min. deviation,
i= (A+Dm)/2 = (60+44)/2= 52
We hope that clarifies your doubt.
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