Question

Name the lens which can concentrate sun rays to a point and burn the piece of paper.

Answer 1

Convex Lens is the lens which can concentrate sun rays to a point and burn the piece of paper.

This lens converges the parallel light rays coming from the sun to a small point that is focus of the lens. As a result the point on which the sun light gets converged burns the paper. This is the point on which the real image of sun itself gets formed.

Cheers!

Answer 2

Answer:convex lens

Explanation:

Convex lenshelps in concentrating sun rays to a point nd burn the peice of paper....hope it helps u