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A ray of light is incident normally norm...

A ray of light is incident normally normallyh on one of the faces of a prism of apex angle `30^(@)` and refractive index `sqrt(2)`. The angle of deviation of the ray is `"________________"` degrees.

Text Solution

Verified by Experts

Using Snell's law for the refraction at AC,
we get `musini=(1)sinrsqrt(2)sin30^(@)=sinr`
`sinr=(1)/(sqrt(2))r=45^(@)`.
Angle of deviation `=45^(@)-30^(@)=15^(@)`
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