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A ray of light is incident normally on o...

A ray of light is incident normally on one of the faces of a prism of apex angle `30^@` and refractive index `sqrt2`. Find the angle of deviation for the ray of light.

Text Solution

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` (1)/(n) = (sin i)/(sin r)`
`(1)/(sqrt2) = (sin 30^@)/(sin r)`
` r = 45^@`
` delta = 45^@ - 30^@ = 15^@`
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