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Minimum angle of deviation for prism hav...

Minimum angle of deviation for prism having angle prism `30^@` is `30^@`, so find angle of incident.

A

`15^@`

B

`60^@`

C

`30^@`

D

`45^@`

Text Solution

Verified by Experts

The correct Answer is:
C
`i+e=A+delta`
`therefore2i=30^@+30^@`
`=60^@` (`because" for "delta_(m),i=e`
`therefore i=30^@`
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