Question

State any five applications of lenses.

Answer 1

1. A convex lens is used as a magnifying glass to watch minute objects.
2. The convex lenses are used in a camera, microscope and telescope.
3. Lenses are used in spectacles to correct the vision of our eyes.
4. A concave lens is used in a Galilean telescope.
5. The eye lens is a convex lens that forms the real and inverted image of any object on the retina.
6. A concave lens is used in a wide-angle spyhole in doors.