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When the angle of incidence on a materia...

When the angle of incidence on a material is `60^(@)`, the reflected light is completely polarised. The velocity of the refracted ray inside the materials is

A

`3xx10^8 m//s`

B

`(3/sqrt2)xx10^8 m//s`

C

`sqrt3xx10^8 m//s`

D

`0.5xx10^8 m//s`

Text Solution

Verified by Experts

The correct Answer is:
C
From Brewster's law `mu=tani_pimpliesc/v=tan60^@=sqrt3`
`=v=c/sqrt3=(3xx10^8)/(sqrt3)=sqrt3xx10^8m//sec`.
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