For a transparent prism, if the angle of minimum deviation is equal to its refracting angle, the refractive index 
of the prism satisfies.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
At minimum deviation, 
(angle of minimum deviation equals prism angle). The refractive index formula becomes:
Using 
:
For a physical prism, 
, so 
, giving 
.
Therefore, 
. However, more precisely, 
.
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