Unpolarised light is incident on a plane glass surface. What should be the angle of incidence so that the reflected and refracted rays are perpendicular to each other? (Given n=1.5)

Unpolarised light is incident on a plane glass surface. What should be

1.	Unpolarised light is incident on a plane glass surface. What should be the angle of incidence so that the reflected and refracted rays are perpendicular to each other? (Given n=1.5)
Answer» SOLUTION :for i+r to be equal to `(pi)/2`, we should have `tani_(B)=mu=1.5`. This GIVES `i_(B)=57^(@)`. This is theBrewster.s ANGLE for AIR to glass interface.

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Unpolarised light is incident on a plane glass surface. What should be the angle of incidence so that the reflected and refracted rays are perpendicular to each other? (Given n=1.5)

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