Question

what is the formula to find magnification of the image formed

Answer 1

m = -v÷u for mirror

Answer 2

common formula of magnification is

$\frac{h' }{h}$

magnification of mirror

$\frac{-v}{u}$

magnification of lens

$\frac{v}{u}$

hope it helps....

stay safe ND have a nice day