Question

An object is placed at the focus of a concave mirror at focal length 20 cm. The distance of the image from the pole of mirror.

Answer 1

Explanation:

Given, f = 20cm, u = −20cm, v = ?

As,

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

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

$\frac{1}{v} = \frac{1}{20} + \frac{1}{20}$

$\frac{1}{v} = \frac{2}{20}$

$v = 10 \: cm$

So, the distance of the image from the pole of the mirror is 10cm.

MARK AS BRAINLIEST....

Answer 2

Answer:

10 cm is your answer mate