Question

A 5.00 cm tall object is placed 4.25 cm from a lens and produces an image that is 3.00 cm behind the lens. What is the magnification of the lens?

Answer 1

Answer:

The magnification of the lens is 0.7

Explanation:

We have,

Height of an object is 5 cm

Object is placed 4.25 cm from a lens

Image is formed 3.00 cm behind the lens.

It means u = -4.25 cm

v = -3 cm (behind the lens)

Magnification of the lens is given by :

$m=\dfrac{v}{u}\\\\m=\dfrac{-3}{-4.25}\\\\m=0.70$

So, the magnification of the lens is 0.7