Question

explain about concave and convex lens....

Answer 1

The difference between concave lenses and convex lenses is their respective property to diverge and converge light rays.

Answer 2

●Those lenses which are thinner at the edges and thick inwards are called convex lenses.
# These lenses are converging lenses.

●Those lenses which are thicker at the edges and thinner at the centre are called concave lenses.
# These lenses are diverging lenses.