Question

How many types of Spherical Lenses? ?????????​

Answer 1

Explanation:

two types

Types : There are two types of spherical lenses: (i) Convex or Converging Lenses : These are thick in the middle and thin at the edges.

(a) Double Convex Lens : It has both the surfaces convex.

(b) Plano–Convex Lens : It has one surface plane and the other surface convex.

Answer 2

Answer:

Spherical Lenses are of two types....

1. convex lens
2. concave lens