Question

What is Concave lens ............

Answer 1

Concave Lens

A lens made by joining the parts of two sperical surface that is thinner in the middle than at the edges it converges the incident rays towards its principal axis

Answer 2

Heya!

Here is ur answer...

Concave Lens

>> Concave lens is a lens.. in which one curved surface is bent inwards

>> Concave is also called as diverging lens..as it diverges the light rays

>> Object and distance is taken negative and Focal length is taken positive in concave lens