Question

A light ray travels from a denser medium to a rater medium.If the critical angle of the denser medium with respect to rarer to rarer medium is 'C', the maximum possible deviation of any ray will be

• A. $\pi -C$
• B. $\frac{\pi }{2}+C$
• C. 2C
• D. $\pi -2C$

Answer 1

The correct option is D $\pi -2C$

From, the figure the angle of maximum possible deviation is $\left(\pi -2C\right)$

Hence, the option $D$ is the correct answer.