Question

what os focal length of a mirror​

Answer 1

Explanation:

The focal length ( f ) is the distance from a lens or mirror to the focal point ( F ). This is the distance from a lens or mirror at which parallel light rays will meet.

Answer 2

Answer:

The focal length of a mirror is the distance from the mirror to the Focal point (F).

Explanation:

Focal length of a plane mirror is infinity.

Focal length of a concave mirror is the distance from mirror at which parallel light rays will meet at a point.

Focal length of a convex mirror is the distance from mirror at which parallel light rays will appear to meet at a point.

Hope it helps... Please mark as the Brainliest!!!