what is relation formula between refractive index of lens and radius of curvature and focal length
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How does the focal point change with a different index of refraction? Analytically, the focal length is described by the lens maker's equation: 1/f = (n - 1)(1/R1 + 1/R2), where R1 and R2 are the radii of curvature, f is the focal length, and n is the index of refraction.
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