Question

A concave mirror produces $3$ times a magnified real image of an object at $10cm$ in front of it. Find where is the image located?

Answer 1

Given,

Magnification, $m=3$

object distance, $\mu =10cm$

We know,

$m=-\frac{v}{\mu }$

$-3=-\frac{v}{(-10)}$

$v=-3\times 10$

$v=-30cm$

Image will be located $30cm$ in front of the mirror.