Question

An object is placed 20 cm in front of a plane mirror. The mirror is moved 2 cm towards the

object. The distance between the position of image and the object is:
a) Increases by 2cm

b) Increases by 4 cm

c) Decreases by 2cm

d) Decreases by 4 cm​

Answer 1

Answer:

d) decreases by 4 cm... as the mirror moved 2 cm towards the object thr distance decreased by 2 cm. and the distance from image to mirror too is decreased by 2 cm.. so in total the distance is decreased by 4 cm.

hope it helps