Question

Difference between 1.convex and concave mirror 2. convex and concave lens

Answer 1

a convex lense is thick in the middle and become thinner at the edges.a magnifying lense is a convex lense.a converging lens bends a ray of light passing through it inwards.
                                   a concave lens is thin in the middle and thicker at the edges.it has the property of bending a ray of light passing through it inwards.