Question

Briefly mention how many types of lens are there. Explain each of them.

Answer 1

Answer:

hey mate here's your answer... hope it helps.....

Explanation:

There are two main types of lenses, known as convex (or converging) and concave (or diverging).

Answer 2

Answer:

tow types of lenses

Explanation:

concave-it is bend inwords

convex-it is bulge outwards