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What is focal length of a lens of power ...

What is focal length of a lens of power `2.5 D` ?

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To find the focal length of a lens with a power of 2.5 diopters, we can use the relationship between power (P) and focal length (f) given by the formula: \[ P = \frac{1}{f} \] where: - P is the power of the lens in diopters (D) - f is the focal length in meters (m) ...
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