Physics · Ray Optics and Lens Systems
A biconvex lens is formed by placing two thin plano-convex lenses in contact. The refractive index and radius of curvature for the first plano-convex lens are μ1 = 1.5 and R1 = 10 cm (curved surface facing left). For the second plano-convex lens, μ2 = 1.5 and R2 = 15 cm (curved surface facing right). When an object is placed on the left side at a distance of 30 cm from this combined biconvex lens, the magnification of the image will be:
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