Question

What is meant by the power of a lens? What is its SI unit? Name the type of lens

whose power is positive?

plzzzzzz answer​

Answer 1

Answer:

Diopter

The SI unit of lens is Diopter, it is denoted by ''D''. The power of the convex lens is positive. A convex lens has the ability to converge the rays of light towards the principle axis.

Answer 2

Here is ur answer refer the attachment mate