The focal length of a convex mirror is its radius of curvature. - YouTube
A concave mirror has a focal length of 41.4 cm. The distance between an object and its image is 75.9 cm. Find (a) the object and (b) image distances, assuming that the
Mirrors and Lenses
What is the focal length of a concave mirror? - Quora
Sign Convention and Focal Length of Convex and Concave Mirror in Ray Optics for JEE and NEET - YouTube