Question

David is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between David and his image will be ______.

विकल्प

•  3 m

•  5 m

•  6 m

• 8 m

Answer 1

David is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between David and his image will be 6 m.

Explanation:

If David moves 1 m towards the mirror, then the distance between his image and mirror = 4 - 1 = 3m

So, the distance between David and the mirror = 3

Hence, distance between David and his image = 3 + 3 = 6m