Question

(b)Describetheshapesofconcaveandconvexlenses​

Answer 1

Answer:

The structure of convex lens is like, thicker at the centre and thinner at the edges. Conversely, the concave lenses are thinner at the centre and thicker at its edges, in structure. The focal length of a convex lens is positive, while that of a concave lens is negative.

Explanation:

Answer 2

Answer:

there are two types of lenses

Explanation:

first one is concave in that lense the mirror is bended towards left side meanwhile the other one is bended towards right side