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A ray incident at 15^(@) on one refracti...

A ray incident at `15^(@)` on one refracting surface of a prim of angle `60^(@)`,suffers a deviation of `55^(@)`. What is the angle of emergance?

A

`95^(@)`

B

`45^(@)`

C

`30^(@)`

D

none of these

Text Solution

Verified by Experts

`A + delta = I + e`
`60^(@) + 55^(@) = 15^(@) + e`
`e = 115 - 15 = 100^(@)`
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