Question

Q.11 i) Name the type of mirror with its nature when magnification of a mirror is a) -5/4 b) 6/7 ​

Answer 1

Answer:

a) Convex lens

b) Concave lens

Explanation:

For a real image (which is inverted), thus the magnification (m) is negative, while for a virtual image (which is erect), the magnification (m) is positive. Thus, a convex lens can have a positive as well as a negative value of m, but a concave lens always has a positive value of m.