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Prism angle &refractive index for a pris...

Prism angle &refractive index for a prism for a `60^(@)`&1.414.Angle of minimum deviation will be-
`(1) 15^(@) (2) 30^(@) (3)45^(@) (4) 60^(@)`

Text Solution

Verified by Experts

`mu=(sin(A+delta_(m))//2)/(sin 30^(@))`
`rArr 1.414=((sin60+delta_(m))//2)/(sin 30^(@)) rArr sin((60^(@)+delta_(m))/(2))=0.707=sin45^(@)`
`rArr (60+delta_(m))/(2)=45^(@)rArr delta_(m)30^(@)`
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