Question

give sign convention table for both mirror and spherical mirror​

Answer 1

Answer:

This means sign is always taken as – (negative) in front of a spherical mirror. For example; the distance of object is always taken as – (negative) in case of both types of spherical mirror, i.e. concave and convex mirrors. Sign is taken as + (positive) behind the spherical mirror.

Answer 2

Answer:

I made everything simple and understanble to you