What is the vlaue of refractive index of a medium of polarising angle `60^(@)` ?

Answer

`1.732 ; 30^(@)`

Explanation

Here, `i_(p) = 60^(@), mu = ?, r = ?`
`mu = tan i_(p) = tan 60^(@) = sqrt(3) = 1.732`
`r = 90^(@) - i_(p) = 90^(@) - 60^(@) = 30^(@)`