A ray of light travels from an optically dens | vedclass

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(D) When a light ray travels from a denser medium to a rarer medium,it bends away from the normal.Let $i$ be the angle of incidence and $r$ be the ang

Vedclass · Accepted Answer

$\frac{\pi}{2} - C$

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(D) When a light ray travels from a denser medium to a rarer medium,it bends away from the normal.Let $i$ be the angle of incidence and $r$ be the angle of refraction.The deviation $\delta$ is given by $\delta = r - i$.For refraction to occur,the angle of incidence $i$ must be less than the critical angle $C$ $(i As $i$ approaches $C$,the angle of refraction $r$ approaches $90^\circ$ or $\frac{\pi}{2}$ radians.Thus,the maximum deviation $\delta_{max}$ occurs when $i$ is just less than $C$ and $r$ is just less than $\frac{\pi}{2}$.Substituting these values: $\delta_{max} = \frac{\pi}{2} - C$.

$A$ ray of light travels from an optically denser medium to a rarer medium. The critical angle for the two media is $C$. The maximum possible deviation of the refracted light ray can be:

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