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The curve of angle of incidence versus a...


The curve of angle of incidence versus angle of deviaton wshown has been plotted for prism.
Q. The value of refractive index of the prism used is

A

`sqrt(3)`

B

`sqrt(2)`

C

`(sqrt(3))/(sqrt(2))`

D

`(2)/(sqrt(3))`

Text Solution

Verified by Experts

The correct Answer is:
A
`delta_(m)=60square,i = 60^(@)`
`delta_(m)=2i -A implies A = 60^(@)`
`mu=sin((A+delta_(m))/(2))/sin((A)/(2))`
`=(sin 60^(@))/(sin 30^(@))=sqrt(3)`
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