Question

formula to find distance between object and mirror is?​

Answer 1

Let distance between object and mirror be u, image and mirror be v and focal length f.

Then,

$\frac{1}{v} + \frac{1}{u} = \frac{1}{f}$

Do remember that all distances to the left of a mirror are taken negative while to the right as positive..

u and f are negative and v depends.