What is ray and beam of light
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A ray is a believed to be coherent light and focused in nature, such as polarized light. A beam is a light which is not focused. This is just the general definition, as ray and beam are not quantitatively defined.
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In optics a ray is an idealized model of light, obtained by choosing a line that is perpendicular to the wavefronts of the actual light, and that points in the direction of energy flow.
A light beam or beam of light is a directional projection of light energy radiating from a light source. Sunlight forms a light beam (a sunbeam) when filtered through media such as clouds, foliage, or windows.
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