Question

define principle axis in short and easy language​

Answer 1

Answer:

A line passing through the centre of the surface of the spherical mirror or lens or through the curvature of all segments is known as principle axis or optical axis.

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Answer 2

Answer:

a line passing through the centre of the surface of a sperical mirror or lens And through the centre of curvature of the all segment of the mirror or lens is call principal axis

Explanation:

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