Question

A boy of height 160 cm is standing 150 cm away from a plane mirror. At what distance from the mirror the image will be formed and what will be the size of the image?

• A. 300 cm, 320 cm
• B. 160 cm, 200 cm
• C. 150 cm, 100 cm
• D. 150 cm, 160 cm

Answer 1

The correct option is D 150 cm, 160 cm

Properties of image formed by plane mirrors are:

• The size of the image is same as that of the object.
• The image is formed at the same distance from the mirror as the object is kept in front of the mirror. In other words, Image distance = Object distance

Therefore, the image of the boy will be formed at 150 cm behind the mirror and its size will be 160 cm.