Home » gate questions » The illumination level of a room is 300 lux and the efficacy of the lamps is 60. The Light Power Density (LPD) of the room in Watt/m2 is GATE The illumination level of a room is 300 lux and the efficacy of the lamps is 60. The Light Power Density (LPD) of the room in Watt/m2 is July 27, 2023 43 Views Q. The illumination level of a room is 300 lux and the efficacy of the lamps is 60. The Light Power Density (LPD) of the room in Watt/m2 is________ . A. 1 B. 5 C. 7 D. 11 Ans: 5 Explanation: Illumination Level of the room = 300 lux = 300 lumen/sq m Efficacy of the lamps = 60 lumen/watt
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