Question

give some uses of concave lens. ​

Answer 1

concave lens is a lens that possesses at least one surface that curves inwards. It is a diverging lens, meaning that it spreads out light rays that have been refracted through it. A concave lens is thinner at its centre than at its edges, and is used to correct short-sightedness (myopia



Binoculars and Telescopes
Binoculars and telescopes employ convex lenses to magnify objects and make them appear closer, but convex lenses don't transfer light accurately; they create distortions and blurs. Binocular and telescope manufacturers therefore install concave lenses in or before the eyepieces to help focus images more clearly for the viewer.



Glasses
Opticians use concave lenses to correct nearsightedness -- also called myopia. A nearsighted eyeball is too long, and the image of a far-away object falls short of the retina.

Answer 2

Heya here is the ans of your qun ..

☆ Uses of Concave lens

1. Concave lenses are used as a correction for myopia or short nearsightedness

2. Concave lens used in optical systems to correct optical aberration.

3. Concave lenses are used in telephoto lenses.

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