Question

Select the most appropriate word from the given box and fill in the following blanks.

refracted diameter converging power convex small concave dioptre diverging focal length two aperture

A ______ lens is thick at the centre and thin at the edges.

Answer 1

A convex lens is thick at the centre and thin at the edges.

Explanation:

A convex lens is thicker in the middle and tapers towards the edges, enabling it to bend parallel light rays inward.