The angle of prism is 
and one of its reftacting surface is silvered. Light rays falling at an angle of incidence ' 
' on the fitst surface tetum back through the same path after suffering reflection at the silvered surface. The refractive index of the material of the prism is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
: 
So, 
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