Optics 7 Question 11
11. A light ray travelling in glass medium is incident on 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
(2011) (a)
(b)
(c)
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Solution:
- After critical angle reflection will be $100 %$ and transmission is $0 %$. Options (b) and (c) satisfy this condition. But option (c) is the correct option. Because in option (b) transmission is given $100 %$ at $\theta=0^{\circ}$, which is not true.
