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A light ray travelling in glass medium i...

A light ray travelling in glass medium is incident of glass- air interface at an angle of incidence `theta`. The reflected `(R )` and transmitted (T) intensities, both as function of `theta`, are plotted The correct sketch is

A

B

C

D

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The correct Answer is:
C
When angle of incidence `(theta)` is less than critical angle `(theta_( c))`, there will be partial transmission and partial reflection of light in a glass medium. When `theta gt theta_( c)`, there will be `100%` reflection of light. In this situation, the transmitted intensity if light is zero. Choice ( c) is correct.
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