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A ray of monochromatic light suffers min...

A ray of monochromatic light suffers minimum deviation of `38^(@)` while passing through a prism of refracting angle `60^(@)` . Refracting index of the prism material is

A

`1.5`

B

`1.3`

C

`0.8`

D

`2.4`

Text Solution

Verified by Experts

The correct Answer is:
A
`mu=(sin.(A+delta_(m))/(2))/(sin.(A)/(2))=(sin.(60+38)/(2))/(sin.(60)/(2))`
`=(sin 49^(@))/(sin30^(@))=(0.7547)/(0.5)=1.5`
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