What are the types of convex lens and concave lens?

The various types of lens are as follows: -

● Double Convex Lens – The both surfaces of the lens are convex.

● Plano-Convex Lens – Its one surface is convex and other is plane.

● Concavo-Convex – Its one surface is convex and other is concave.

● Double concave lens – This type of lens has both concave surfaces.

● Plano concave lens – This has one surface as concave and other is a plane.

● Convexo-Concave Lens – One surface of the lens is convex and another surface is concave.