Question

The image is formed at distance of 100 cm from concave mirror of focal length 98 Cm. Find the distance of object ?​

Answer 1

Explanation:

hope it helps you.

mark as BRAINLIST answer.

oops it wrong somewhere sorry.

Answer 2

$\bigstar$ Given :

Image distance , v = 100 cm

Focal length , f = 98 cm

Object distance , u = ?

$\bigstar$ Formula :

$\bf{\red{\bold{\frac{1}{f}=\frac{1}{u}+\frac{1}{v} }}}$

$\bigstar$ Explanation :

substituting values in formula , we get ,

$\implies \frac{1}{98}=\frac{1}{u}+\frac{1}{100}\\\\\implies \frac{1}{u}=\frac{1}{98}-\frac{1}{100}\\\\\implies \bold{\frac{1}{u}=\frac{1}{4900}}$

So , u = 4900 cm