Question
The magnification produced by a plane mirror is +1. What does this mean?
Solution
Magnification is the ratio of the size of the image (h') to the size of the object(h).
As,
Magnification,
For a plane mirror, m = + 1 (given).
So,
h' = h and v = -u
Magnification is equal to one indicates that the size of image is same as that of object.
Positive sign of m indicates that a virtual image is formed behind the mirror.
