Find the Radius of curvature of a lens of power -2.0 D. what type of lens is this?
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Optical power of the lens depends on the radius of curvature R 1 and R 2 of its spherical surface and the refractive index n of the material from which the lens is made by expressed by the formula (1r1+1r2)(n−1) the question is what's the difference between the two radii, aren't they one?
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