A convex lens converges light rays.

Question

Accepted Answer

: A convex lens is thicker at the middle than at the edges. It can be thought of as a combination of prisms with their bases facing inward (toward the centre); since a prism always bends light towards its base, and the central portion refracts light more strongly than the edges, parallel rays passing through a convex lens are bent inward and meet at a single point (the focus).