when a prism is in minimum deviation position, how is i1=i2 & r1=r2?-what does it mean that the prism lies symmetrically w.r.t incident ray and emergent ray?

Asked by  | 10th Jul, 2011, 12:00: AM

Expert Answer:

                     
 
From the above figure,
 
 
Prism lies symmetrically wrt the incident ray and emergent ray means that the angle of incidence (i1) and the angle of emergence (i2) are equal.

Answered by  | 15th Jul, 2011, 11:49: AM

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