Question

A man standing in front of a plane mirror finds his image to be at a distance of 6 meters from himself. The distance of man from the mirror is :

• A. 6 m
• B. 3 m
• C. 2 m
• D. 12 m

Answer 1

The correct option is B

3 m

1. In case of a plane mirror, the image always forms at a distance from the mirror as our object is present in front of the mirror.
2. i.e. Distance of object from the mirror = Distance of image from the mirror
3. In this question, we have given the distance between a man and his image. So, 6 m distance means the plane mirror is placed at 3m away from the man so that image is formed 3 m away from the mirror inside it and the total distance between man and image will be -
4. 3 m (distance of man from mirror) + 3 m (distance of the image from mirror) = 6m.

Hence, The distance of man from the mirror is 3m.