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Sep 28, 2022 · The concave lens formula is used to determine the nature and position of the image created by the lens. The following is the lens formula: 1/f= 1/v+1/u. where, f = focal length. v = Image’s distance from the centre. u = Object’s distance from the centre. Similarly, the image magnification is provided by the equation,
Oct 13, 2022 · The lens formula is used to identify the nature and the position of the image formed by the concave lens. The lens formula is expressed as follows: 1/f= 1/v + 1/u. where f = focal length. v = distance of the image from the centre. u = distance of the object from the centre. Similarly, the magnification of the image is given by the equation,
Concave lenses are basically used in diverging the rays which are incident on the surface of the lenses. Several usages of the concave lenses in our daily lives that cater to telescopes, cameras, lasers, flashlights, and eyeglasses for treating people with a deficit in near-sightedness. These concave lenses are as well-known as “diverging ...
A key property of lenses lies in their curvature. The curvature of lenses allows them to be used for a variety of purposes and to produce different types of images. Lenses can curve in one of two directions, either inward or outward, and thus lenses are broadly categorized into two types: the bi-concave lens (or simply concave lens) and the bi ...
A concave lens diverges a beam from the source and forms a diminished, upright virtual image. Concave lens is also called a diverging lens. Telescopes, peepholes, and eyeglasses use concave lenses. The edges of a concave lens are thicker and the centre is thinner. The magnification of the image can be calculated as M=h i /h 0 = v/u
If one of the surfaces is flat, the lens is plano-convex or plano-concave depending on the curvature of the other surface. A lens with one convex and one concave side is convex-concave or meniscus. Convex-concave lenses are most commonly used in corrective lenses, since the shape minimizes some aberrations.
Concave lenses are used in spectacles in order to overcome myopia or short-sightedness. A concave lens produces a smaller image for the viewer. The focal point of a concave lens is the point from which the light rays parallel to the axis seem to diverge after passing through the lens.
