Question

what is the sign convention in spherical mirror​

Answer 1

Explanation:

CONVEX MIRROR

Image distance:+ve

Object distance:+ve

Focal length:+ve

CONCAVE MIRROR

Image distance:+ve/-ve

Object distance:-ve

Focal length:-ve

Answer 2

Explanation:

For convex mirrors.

image distance =+ve

object distance =+ve

focal length=-ve

For concave mirrors,

image distance=+ve/-ve

object distance =-ve

focal length=+ve