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Ray of light: this is the direction taken by light.

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A beam of light is a group of light rays. They can be parallel, convergent and divergent.

a) A parallel beam of light is a collection of parallel light rays.

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b) A divergent beam of light is a collection of rays which come from the same source or point.

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c) A convergent beam of light is a collection of light rays which pass through a common point.

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