Question

what refer as principle Axis?​

Answer 1

Answer:

The principal axis is called a line that passes via the centre of the surface of a spherical mirror or lens and through the centre of curvature of all segments of the mirror or lens.

hope it helps uh...

Answer 2

Answer:

here's your answer;

Noun. 1. principal axis - a line that passes through the center of curvature of a lens so that light is neither reflected nor refracted; "in a normal eye the optic axis is the direction in which objects are seen most distinctly"

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