====== Polarization by Reflection ====== {{:physicsdemos:waves_and_optics:polarization:polarization_by_reflection.jpeg?400|}} A slide projector is used to shine light downward onto a glass plate at Brewster's angle, approximately 34 degrees from the horizontal. Using a polarization filter, the reflected light can be shown to be almost completely polarized in the horizontal direction. L1, G0 PIRA DCS 6H20.00