Question

Minimum deviation is observed with a prism having angle of prism A, angle of deviation $\delta ,$ angle of incident $i$ and angle of emergence e, then we have generally:

• A. $i=e$
• B. $i< e$
• C. $i>e$
• D. $i=e=0$

Answer 1

Answer: (A)

$i=e$

Answer 2

A prism which has angle of prism A angle of deviation $\delta ,$ angle of incidence $i$ and angle of emergence $e,$ then the minimum deviation is observed if we have generally angle of incidence $i=$ angle of emergence $e$ .