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Brewster's angle is the angle at which polarized light is completely reflected when it strikes the surface of a medium, such as glass or water. It is named after Scottish physicist Sir David Brewster.
If the angle is less than Brewster's angle, the light will be partially reflected and partially refracted. The amount of reflection and refraction will depend on the angle and the properties of the medium. This phenomenon is known as partial polarization.
If the angle is greater than Brewster's angle, the light will be mostly refracted and very little will be reflected. The exact amount of reflection and refraction will depend on the angle and the properties of the medium. This phenomenon is known as total polarization.
No, Brewster's angle varies depending on the material. It is determined by the refractive index of the material, which is a measure of how much the speed of light is reduced when passing through the material.
Yes, Brewster's angle can be used to determine the refractive index of a material. By measuring the angle at which polarized light is completely reflected, the refractive index of the material can be calculated using the Brewster's Law equation: n = tan(angle).
