Question

use of concave and convex ense​

Answer 1

Most high quality cameras, telescopes and binoculars use concave lenses to improve the quality of the images they provide. Microscopes and reflecting telescopes make use of a concave mirror, a plane mirror, and a convex lens, while refracting telescopes use two convex lenses.

Answer 2

cameras , telescope are used concave lense

mirror are used convex