An object is placed at a distance of 8 cm from a convex mirror of focal length 12 cm. Find the position of the image formed.

An object is placed at a distance of

8 cm

from a convex mirror of focal length

12 cm

. The position of image formed is at

4.8 cm

.
Using the mirror formula,

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

Where

u = - 8

and

f = 12,

substituting the values in mirror formula,
⇨

\frac{1}{v} - \frac{1}{8} = \frac{1}{12}

⇨

\frac{1}{12} + \frac{1}{8} = \frac{1}{v}

⇨

v = \frac{12 \times 8}{12 + 8}

⇨

v = 4.8 cm

An object is placed at a distance of $8 cm$ from a convex mirror of focal length $12 cm$ . Find the position of the image formed.