Question

15. What are uses of lens ?​

Answer 1

Answer:

A lens can focus light to form an image, unlike a prism, which refracts light without focusing. Devices that similarly focus or disperse waves and radiation other than visible light are also called lenses, such as microwave lenses, electron lenses, acoustic lenses, or explosive lenses.

Answer 2

Answer:

the uses of lens are of we get the site we have to use the lens in the case of which site we got it right if we don't see the nearest objects means we get the hypermetropia lens. if we cont see the far or large objects we get that mayopia