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  1. Lux is the SI unit of

    2. A.
    intensity of illumination
    B.
    luminous efficiency
    C.
    luminous flux
    D.
    luminous intensity

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    Answer : Option A

    Explanation :

    The SI unit of intensity of illumination (illuminance) is the lux. An illuminance of 1.0 lux is produced by 1.0 lumen of light shining on an area of 1.0 m^2.

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