concave lens uses

For a Concave lens,There are only 2 casesThey areObject is Placed at InfinityObject is Placed between Infinity and Optical CenterCase 1 - Object is Placed at infinityIn this Case, Object is kept far away from mirror (almost at infinite distance)So, we draw rays parallel to principal axisSince ray pa Concave lenses are used in spectacles, binocular, telescopes, and in photography. Convex lenses are used for focusing light rays to make items appear larger and clearer, such as with magnifying glasses. Bound by two spherical surfaces, this lens is thicker at the center and thinner at the edges. 1. Peepholes or door viewers are security devices that give a panoramic view if objects outside walls or doors. A concave lens is used to minimize the proportions of the objects and gives a wider view of the object or area. Concave lens used in peepholes. A concave lens contains at least one inwardly-curved surface, and it is also referred to as a divergent lens. (these lenses diverge ligh so that we can see a larger portion) 3. Used in telescops to give a sharp image 4. Used in flashlights. Microscopes have a convex lens and a concave mirror and a flat mirror to magnify small images on a slide. Convex Lens. The University of Virginia's Biology Department notes that refracting telescopes use two convex lenses and reflecting telescopes use convex and concave lenses and a flat mirror to magnify 5. Uses of Concave Lens. 2. Used in binoculars. Concave lenses are used to treat myopia. These were some uses of a concave lens. Telescopes use convex lenses 5. Concave lenses are used for correcting myopia or short-sightedness. Convex lenses are also called converging lenses. Recreation

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