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JEE Main & Advanced Physics Ray Optics Question Bank Refraction at Curved Surface

  • question_answer
    The unit of focal power of a lens is                         [KCET  2001]

    A)            Watt                                        

    B)            Horse power

    C)            Dioptre                                   

    D)            Lux

    Correct Answer: C

    Solution :


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