A convex lens is a converging lens.. This discussion on 5 uses of concave and convex lens in our daily life is done on EduRev Study Group by Class 7 Students. Used in binoculars. Concave lenses are used for correcting myopia or short-sightedness. Convex lenses are used for focusing light rays to make items appear larger and clearer, such as with magnifying glasses. The distance between the principal focus and the centre of the lens is called the focal length. In a ray diagram, a convex lens is drawn as a vertical line with outward facing arrows to indicate the shape of the lens. Concave lenses are used to treat myopia. (these lenses diverge ligh so that we can see a larger portion) 3. Convex lenses: Providing magnification - reading glasses, magnifying glass, etc. A lens with one convex and one concave side is convex-concave or meniscus. Used in flashlights. Convex lenses are thicker at the middle. The Questions and Answers of 5 uses of concave and convex lens in our daily life are solved by group of students and teacher of Class 7, which is also the largest student community of Class 7. 2. 1. Convex and concave lenses. If the lens is biconvex or plano-convex, a collimated beam of light passing through the lens converges to a spot (a focus ) behind the lens. Used in telescops to give a sharp image 4. Rays of light that pass through the lens are brought closer together (they converge). Uses of Convex Lenses 1.Uses in spectacles to correct the defect of vision called hypermetropia or long sightedness 2.Used for making a simple camera 3.Used as magnifying glasses 4.Used in microscopes, telescopes, film projectors, etc. Uses of Concave Lenses 1.Concave lenses are used for correcting myopia or short-sightedness. When parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.. 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