Question

A collection of light rays is usually called_______
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Answer 1

Answer - Beam

Explanation -

Geometrical optics consists of a set of rules that determine the paths followed by light rays. In any uniform medium the rays travel in straight lines. The light emitted by a small localized source is represented by a collection of rays pointing radially outward from an idealized “point source.” A collection of parallel rays is used to represent light flowing with uniform intensity through space; examples include the light from a distant star and the light from a laser. The formation of a sharp shadow when an object is illuminated by a parallel beam of light is easily explained by tracing the paths of the rays that are not blocked by the object.

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Answer 2

BEAM

A GROUP OF LIGHT RAYS IS CALLED AS THE ( BEAM OF LIGHT )

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