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The angle of a prism is 30^@. The rays i...

The angle of a prism is `30^@`. The rays incident at 60° at one refracting face suffer a deviation of `30^@`. The angle of emergence is

A

`0^(@)`

B

`30^(@)`

C

`60^(@)`

D

`90^(@)`

Text Solution

Verified by Experts

`e=(A+delta)-i=(30^(@)+30^(@))-60^(@)=0^(@)`
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