What is the difference between principle of axix and the principle of

1.	What is the difference between principle of axix and the principle of focus?
Answer» Principal axis is an imaginary line passing through the pole and the centre of curvature of a spherical mirror. Principal focus is a point on the principal axis, where a beam of light, parallel to the principal axis, after reflection, either actually meets (concave) or appears to meet (convex).

What is the difference between principle of axix and the principle of focus?

Answer»

Principal axis is an imaginary line passing through the pole and the centre of curvature of a spherical mirror.

Principal focus is a point on the principal axis, where a beam of light, parallel to the principal axis, after reflection, either actually meets (concave) or appears to meet (convex).

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What is the difference between principle of axix and the principle of focus?

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