Question

1). explain concave lens.?​

Answer 1

Answer:

A concave lens is a lens that possess at least one surface that curves inward.It is also known as diverging lens i.e., it spread out light rays that have been refrated throught it.A concave lens is thinner at its centr than its edges.It is used to correct myopia(short-sightedness).

Answer 2

Answer:

HERE IS YOUR ANSWER ✌

Explanation:

this is a lens which causes at least one surface that covers inwards.it is a lens which state out light rays that have been refracted through it .it is thinner at inside then at its edges and is used to correct short sightedness 《myopia 》.