Question

A concave mirror produces three times magnified (enlarged) real image of an object placed at $10cm$ in front of it. Where is the image located?

Answer 1

Step 1: Given data

Magnification ($m$)= $-3$ (negative because image is real)

Object distance ($u$)= $-10cm$ (negative because it is on the left side of the mirror)

Step 2: Formula used

According to the magnification formula

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

Step 3: Solution

$$\begin{gathered} v=-\left(u\right)\times \left(m\right) \\ =-(-10)\times (-3) \\ =-30cm \end{gathered}$$

Thus, the image is located $30cm$ in front of the mirror.