In optics, a prism is a transparent optical element with flat, polished surfaces that refract mild. at least two of the flat surfaces have to have an perspective among them. the exact angles between the surfaces depend upon the application. The traditional geometrical form is that of a triangular prism with a triangular base and rectangular sides, and in colloquial use "prism" usually refers to this kind. some kinds of optical prism are not in reality within the shape of geometric prisms. Prisms can be crafted from any cloth this is obvious to the wavelengths for which they may be designed. traditional materials encompass glass, plastic and fluorite.
A dispersive prism may be used to break light up into its constituent spectral hues (the colors of the rainbow). furthermore, prisms can be used to mirror light, or to split mild into additives with exceptional polarizations.
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