Question

show using a proper diagram how unpolarised light can be linearly polarised by reflection from a transparent glass surface

Answer 1

The reflection coefficient for light which has electric field parallel to the plane of incidence goes to zero at some angle between 0° and 90°, the reflected light at that angle is linearly Polarised.

The angle at which this occurs is known as the polarizing angle or the Brewster angle.

Find I the image the diagram to explain this.