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Mayomi Ayandiran · Answer 1 · 2017-04-19T12:06:14+0000

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. Wikipedia

Anuj Dhiman · Answer 2 · 2017-04-22T16:06:40+0000

A light ray is one narrow beam of light traveling in a straight line. It is the most basic element in geometrical optics. A light ray is an idealized and hypothetical model of a light that is used to better explain the propagation of light. In reality, light travels as a wave and can therefore be bent.

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