A bi-convex lens is formed with two thin plano-convex lenses as shown in the figure. Refractive index n of the first lens is 1.5 and that of the second lens is 1.2. Both the curved surfaces are of the same radius of curvature R = 14 cm. n = 1.5 For this bi-convex lens, for an object distance of 40 cm, the image distance will be (a) - 280.0 cm (b) 40.0 cm (c) 21.5 cm (d) 13.3 cm R = n = 1.2 14 cm
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