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Angle of minimum deviation is equal to t...

Angle of minimum deviation is equal to the angle of prism A of an equilateral glass prism. The angle of incidence at which minimum deviation will be obtained is

A

`60^(@)`

B

`30^(@)`

C

`45^(@)`

D

`sin^(-1)(2//3)`

Text Solution

Verified by Experts

The correct Answer is:
a.
`A=delta_(m)=60^(@)`
At minimum deviation `i=((A+delta_(m))/(2))=60^(@)`
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