DETERMINATION OF BREWSTER’S ANGLE FOR GLASS AND PLASTIC USING A POLARIZED MONOCHROMATIC LIGHT SOURCE

When light moves between two media of differing refractive index (n), some of the light is reflected from the surface of the denser material. This reflected ray’s intensity changes with changes in the incident angle (θi) of light on the new medium. At one particular angle of incidence light with a particular polarization is not reflected at all. This loss in light intensity i