How is the power of a lens related to its focal length ?

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Solution

The power of a lens is defined as the reciprocal of its focal length in meters, or $D = \frac{1}{f}$ , where D is the power in diopters and f is the focal length in meters. Lens surface power can be found with the index of refraction and radius of curvature.

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How is the power of a lens related to its focal length ?

The power of a lens is defined as the reciprocal of its focal length in meters, or D=1f, where D is the power in diopters and f is the focal length in meters. Lens surface power can be found with the index of refraction and radius of curvature.

The power of a lens is defined as the reciprocal of its focal length in meters, or $D = \frac{1}{f}$ , where D is the power in diopters and f is the focal length in meters. Lens surface power can be found with the index of refraction and radius of curvature.