Question

what is lens what are its kind​

Answer 1

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${A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. A simple lens consists of a single piece of transparent material, while acompound lens consists of several simple lenses (elements), usually arranged along a common axis. Lenses are made from materials such as glass or plastic, and areground and polished or molded to a desired shape. A lens can focus light to form animage, unlike a prism, which refracts light without focusing. Devices that similarly focus or disperse waves and radiation other than visible light are also called lenses, such asmicrowave lenses, electron lenses, acoustic lenses, or explosive lenses}.$

hope it helps u dear

Answer 2

Hey mate ❤

●LENS::

☆ A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction.

☆ A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses (elements), usually arranged along a common axis.

●MAIN KINDS OF LENSES::

◇Concave lens

◇ Convex lens

hope it helps yu

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