Question

The image of an object formed by a mirror is real inverted and is of magnification. If the image is at a
distance of 40cm from the mirror, where is the object placed, where would the image be if the object is
moved 20cm towards the mirror? State reason and also draw ray diagram for the new position of the objec
to justify your answer.​

Answer 1

Explanation:

the object would be placed at 40cm from the mirror and the image of the object would be 20cm from the mirror. the reason is that the distance of object behind the mirror is always equal to the distance in front of it.(properties of plane mirror)

Answer 2

Answer:u=-40cm

Explanation:

object distance ,u = -40 cm; Image will be at infinity; Ray diagram : object is at F