Lux is the SI unit of - (1) intensity of illumination (2) luminous efficiency (3) luminous flux (4) luminous intensity

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Answer :

(1) intensity of illumination 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 m2.

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