Question

what happens to the image,if a convex lens is made up of two different transparent materials???

Answer 1

Given convex lens is made up of two different materials.
The two different materials have two different refractive indices.
So the lens have two different focal lengths.
Hence two different images are formed.

Answer 2

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The convex lens is made up of two different materials. so the refractive indices of these two materials will be different. Hence two images will be formed.