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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 polarized. The velocity of the refracted ray inside the material is (in `ms^(-1)`)

A

`3 xx 10^(8)`

B

`(3)/(sqrt(2)) xx 10^(8)`

C

`sqrt(3) xx 10^(8)`

D

`0.5 xx 10^(8)`

Text Solution

Verified by Experts

The correct Answer is:
C
`n= tantheta_(B)= tan60^(@)= sqrt(3)`
`v= (c)/(n)= (3 xx 10^(8))/(sqrt(3))`
`implies v= sqrt(3) xx 10^(8) m//s`
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