Question

what is the pricipal focus of concave and convex mirror​

Answer 1

Answer:

Principal focus of a concave mirror:

The principal focus of the concave mirror is a point on the principal axis of the mirror. Incident rays of light, parallel to the principal axis, after reflection from mirror surface and where they meet or intersect with each other .

Principal axis of convex mirror:

Light rays that are parallel to the principal axis of a concave mirror which meet at a specific point on its principal axis after reflecting from the mirror. The point where they meet is called principal axis of convex mirror.

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