Define lens makers formula
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Lens maker's formula is the relation between the focal length of a lens to the refractive index of its material and the radii of curvature of its two surfaces. It is used by lens manufacturers to make the lenses of particular power from the glass of a given refractive index.
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Lens Makers Formula
What is the lens makers formula?
Real lenses have the finite thickness between their two surfaces of curvature. An ideal thin lens with two surfaces of equal curvature will have zero optical power. It means it will neither converge nor diverge light. A lens with some thickness which is not negligible is called a thick lens.
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