Question

An object is placed at 10 cm from a convex mirror of focal length 10 cm. Find the position of the image

Answer 1

u = -10 cm

f = 10 cm

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

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

$\frac{1}{v}$ = $\frac{1}{10}$ + $\frac{1}{10}$

v = 5 cm

Image is formed at a distance of 5 cm from the pole behind the mirror.