What are lenses? what are the two types of lenses?
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A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. ... Lenses are made from materials such as glass or plastic, and are ground and polished or molded to a desired shape. A lens can focus light to form an image, unlike a prism, which refracts light without focusing.
The two most common types of lenses are concave and convex lenses.
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lens are a type of special glasses by which we can magnify an object' image or diminish it's image
the two types of lenses are:
1. concave lens and
2.convex lens
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