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Q. |
SI unit of luminous intensity is . |
A. | lumen |
B. | lux |
C. | candela |
D. | watt |
Answer» C. candela | |
Explanation: Luminous intensity is a measure of the wavelength-weighted power emitted by a light source in a particular direction per unit solid angle, based on the luminosity function, a standardized model of the sensitivity of the human eye. The SI unit of luminous intensity is the candela (cd). |
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