Question

four uses of convex and concave lenses in points

Answer 1

Convex:It is used in spectacles.
It is used in making camera.
It is used in microscope , Telescope.
It is used in magnifying glass.
Concave: It is used in spectacles.
It is used ineye.lens in Galilean Telescope.
It is used in opticle instrument.
It is used in wide -angle spyhole in door.

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Answer 2

uses of convex lenses

Uses in spectacles to correct the defect of vision called hypermetropia or long sightednessUsed for making a simple cameraUsed as magnifying glassesUsed in microscopes, telescopes, film projectors, etc.

use of concave lenses

Concave lenses are used for correcting myopia or short-sightedness.Concave lenses are used on flashlights to magnify the light produced by the bulb.Used in peepholes of house doors for security to provide a view of people or objects outside the doors.