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The power of lens is measured …

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The power of lens is measured as the reciprocal of its focal length.why?

    • Posted by Atul Tiwari 8 years ago

    CBSE > Class 12 > Physics
    • 2 answers

    Sunaina Gupta 8 years ago

    It can be... Seems to be relevant

    2Thank You

    Vineit Kumar Gupta 8 years ago

    I am not sure but this may be because power is defined as diverging or converging capacity of a ray by a lens . Hence as we know more will the focal length more will be the curvature in the lens And less will the effect of it on the power. As at when the radius of curvature for a lens will be infinty . The lens will become a plain glass And it will not diverge or convege and hence following this simple logic it may be said that focal length is inversily proportional to power of a lens

    3Thank You

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