A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is '…

A ray of light travels from an optically denser to rarer medium. The critical angle for the two media is ' $C$ '. The maximum possible deviation of the ray will be
  1. $\frac{\pi}{2}-C$
  2. $2 C$
  3. $\pi-2 C$
  4. $\pi-C$

Solution


The deviation is given by $\begin{aligned} & \delta=\pi-2 \mathrm{i} \\ & \text { At } \mathrm{i}=\mathrm{C}, \delta=\delta_{\max } \\ & \therefore \quad \delta_{\max }=\pi-2 \mathrm{c} \end{aligned}$

Asked in: AP EAMCET 2024 (21 May Shift 1)

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