Physics, 02.12.2021 23:50 ani61

A compound lens is made by joining the plane surfaces of two thin plano-convex lenses of different glasses. The radius of curvature of each convex surface is 80 cm. The indices of refraction of the two glasses are 1.50 and 1.60. What is the focal length of the compound lens

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A compound lens is made by joining the plane surfaces of two thin plano-convex lenses of different g...