A ray of light, travelling in a medium of refractive index µ, Is incident at an angle i on a composite transparent plate consisting of three plates of refractive indices 
and 
. The ray emerges from the composite plate into a medium of refractive index 
, at angle x, then
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
From Snell's law,
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