Question

How to identify a plane mirror, a concave mirror and a convex
mirror without touching mirrors?
(b) The magnification of a spherical mirror is – 1. What does it
mean?

Answer 1

Answer:

(a)we can distinguish between concave and convex mirrors without touching them. As we know that in a concave mirror the size of the image formed is enlarged and real . And in the convex mirror the size of the image formed is diminished and real .

(b)magnification is positive for virtual images and negative for real images. If the magnification is -1 then image is enlarged.