what is a ray?
define it .
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Ray- which started from one point and no end point is know as Ray .... in diagram it is beam of ray
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A line of light ,heat or energy is called RAY.
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
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
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