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)`)

`3 xx 10^8`

`(3/sqrt2)xx10^8`

`sqrt3 xx 10^8`

`0.5 xx 10^8`

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