Question

uses of concave and convex lens

Answer 1

used as corrective lens for myopia(concave), hypermetropia (convex), telescope, microscopes and cameras

Answer 2

HELLO
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 concavemirror, a plane mirror, and a convex lens, while refracting telescopes usetwo convex lenses.
THANKS........