A person stands 1 m in front of a plane mirror. The DISTANCE between the person and their image is:
A1 m
BDepends on size of person
C0.5 m
D2 m
Answer & Solution
Correct answer: D. 2 m
The image is as far behind the mirror as the object is in front — so 1 m behind. Distance from the person (1 m in front) to the image (1 m behind) is 1 + 1 = 2 m.
Related questions
For a concave mirror, as an object moves from infinity towards the focus, the real imageThe power of a lens is −2.5 D. The lens isA small bulb is placed at the focus of a concave mirror of focal length 12 cm. The reflectWhich mirror is used as a rear-view mirror in vehicles, and why?An object 4 cm tall is placed 15 cm from a convex lens of focal length 10 cm. The image heA ray of light travelling in air enters water (n = 4/3). It bendsThe laws of reflection hold good forA convex lens forms a real image three times the size of the object on a screen. If the fo