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JEE Main & Advanced Physics Ray Optics Question Bank Photometry

  • question_answer
    "Lux" is a unit of                                                    [Kerala PMT 2001]

    A)            Luminous intensity of a source

    B)            Illuminance on a surface

    C)            Transmission coefficient of a surface

    D)            Luminous efficiency of source of light 

    Correct Answer: B

    Solution :

               Illuminance on a surface


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