Question

what are concave and convex lenses .pls give full explanation thank you ​

Answer 1

A concave lens is thinner in the middle and thicker at the edges. A convex lens is thicker in the middle and thinner at the edges. Also known as. It is also known as Diverging Lens. It is also known as Converging Lens.

Answer 2

Explanation:

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A concave lens is a type of lens that diverges a straight light beam coming from the source to a diminished, upright, virtual image is known as a concave lens. It can form both real and virtual images. Concave lenses have at least one surface curved inside. A concave lens is also known as a diverging lens because they are shaped round inwards at the center and bulges outwards through the edges, making the light diverge on it. They are used for the treatment of myopia as they make faraway objects look smaller than they really are.

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This type of lens is thicker at the center and thinner at the edges.

An optical lens is generally made up of two spherical surfaces. If those surfaces are bent outwards, the lens is called a biconvex lens or simply convex lens. These types of lenses can converge a beam of light coming from outside and focus it to a point on the other side. This point is known as the focus and the distance between the center of the lens to the focus is called the focal length of convex lens. However, if one of the surfaces is flat and the other convex, then it is called a plano-convex lens.

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