A plano-convex lens is made of refractive index 1.6,the radius of curvature of curved surface is 30cm. Find focal length of the lens?
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A plano convex lens of refractive index 1.5 and radius of curvature 30 cm. A double convex lens of focal length 6 cm is made of glass ofrefractive index 1.5. A biconvex lens made of a transparent material ofrefractive index 1.5 is immersed in water of refractive index 1.33.
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