Question

The distance between the image and the object in a plane mirror is 40cm if the distance of the object is reduced by 9.2cm, what is the distance of the object from the mirror?

Answer 1

For a plane mirror

the distance between the object and the plane mirror =

= the distance between the image and the plane mirror $=40/2=20$ $cm$

So, we have

$20-9.2=10.8$ $cm$ Answer