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| Q. |
Lux is the SI unit of - |
| A. | intensity of illumination |
| B. | luminous efficiency |
| C. | luminous flux |
| D. | luminous intensity |
| Answer» A. intensity of illumination | |
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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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