Question

a convex lens is made up of three different material as show in the figion many of image does it form ?

Answer 1

Answer:

When convex lens is made of three different materials, it will have 3 different refractive indices. And hence 3 images will be formed.

Answer 2

A lens made of three different materials of refractive indices say n1, n2, n3. These three materials will have three different refractive indices. Thus for a given object it forms three images.