Example 10.3 - A concave lens has focal length of 15 cm. First, what is a thin lens? Thin Lens Formula with Magnification for Concave and Convex Lenses. mark as … • Camera: The magnification of the image in the camera is done by adding multiple lenses one after another like a convex lens followed by a concave lens and again followed by a convex lens. If the thickness of a lens is negligible in comparison to the radius of curvature, it is a thin lens. please follow me. Urgent 2 See answers thotadevyani thotadevyani the magnifying power of of a concave lens is always less than one. In general, the lenses come in two shapes: convex (curved outward) and concave (curved inward). Lens Formula and Magnification - Lens Power. By combining a concave lens with a convex lens, the undesirable effects are eliminated. Lenses, both converging and diverging, are the marvels of optical physics that use the ability of these media to refract, reflect, or bend light rays. At what distance should the object from the lens be placed so that it forms an image at 10 cm from the lens? Also, find the magnification produced by the lens.