Question

Define convex lens And concave lens

Answer 1

CONVEX  Lens

 This lens converges a straight beam of light.

This lens is thicker at the centre and gets thinner on the edges

CONCAVE  Lens

This lens diverges a straight beam of light.

 This lens is thinner at the centre and gets thicker on the edges.

Hope it helps !!

Plz mark as brainliest !!!

Answer 2

convex lens= when the transparent medium is bounded by two bulged out surfaces, it is called a convex lens.
convex lenses are used in magnifying glasses and spectacles also for those who cannot see near objects clearly.
convex lenses converges the light rays incident on it.
concave lenses= when the transparent medium is bounded by two in surfaces, it is called a concave lens.
concave lenses are used in spectacles for those who cannot see far away objects clearly, these lenses are also used in cameras, microscopes and telescope.
concave lenses diverge the light rays incident on it.