A ray of light travels from an optically denser medium towards rarer medium. The critical angle ...

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A ray of light travels from an optically denser medium towards rarer medium. The critical angle for the two media is \( C \). The maximum possible angle of deviation of the ray is
(a) \( \frac{\pi}{2}-C \)
(b) \( \frac{\pi}{2}-2 C \)
(c) \( 2 C \)
(d) \( \frac{\pi}{2}+C \)
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