An object placed 2 cm from a plane mirror is shifted by 0.5 cm away from the mirror. What is the distance between the object and its image?
5cm
In a plane mirror, the distance between the image and the mirror is equal to the object and the mirror.
2 cm + 0.5 cm = 2.5 cm [distance between object and mirror]
So, the distance between object and image = 2 * 2.5 cm
= 5 cm