Question

state two difference between convex lenses and concave lenses give one use of convex lenses and use of concave lenses

Answer 1

convex lens- it is a converging lens.
it's focal length is positive.
uses:-it is used to correct hypermetropia.
it is used in telescopes.

concave lens- it is a diverging lens.
it's focal length is negative.
uses:- it is used to correct myopia.
it is used in peep hole on doors

Answer 2

convex
it is converging lens
image is real and inverted

use
it is used in magnifying lens




concave
it is diverging lens
it form image virtual and erect

use
it is used in eye lens