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A ray of light is incident on a galss...

A ray of light is incident on a galss slab making on angle of ` 30^(@)` with the surface . If the angle of refraction in glass is ` 33^(@)`, the angle of deviation of the ray during its passage through the galss slab is

A

`30^(@)`

B

`27^(@)`

C

`40^(@)`

D

`20^(@)`

Text Solution

Verified by Experts

The correct Answer is:
B
`r = 33^(@) , i= 60^(@) therefore delta = 60^(@) - 33^(@) = 27^(@)`
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