Illumination The illumination at a point 5 meters below a lamp in 6 lux. The candle power of the lamp is 150. 200. 140. 30 150. 200. 140. 30 ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficacy of a typical HPSV lamp is in between 120 - 200 lm/watt. 40 - 70 lm/watt. 10 - 40 lm/watt 70 - 120 lm/watt. 120 - 200 lm/watt. 40 - 70 lm/watt. 10 - 40 lm/watt 70 - 120 lm/watt. ANSWER DOWNLOAD EXAMIANS APP
Illumination The illumination of the surface varies directly with cosine of the angle between normal to surface and direction of the inclined light is given by law of square inverse. both A and B. Lambert’s cosine law. None of these law of square inverse. both A and B. Lambert’s cosine law. None of these ANSWER DOWNLOAD EXAMIANS APP
Illumination ___________________________ factor is defined as the ratio of the illumination when everything is clean to illumination under normal working conditions. Utilization. Depreciation. Maintenance. Absorption factor. Utilization. Depreciation. Maintenance. Absorption factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela/metre square is the unit of which photometric quantity? Luminous flux Luminance Luminous Intensity Illuminance Luminous flux Luminance Luminous Intensity Illuminance ANSWER DOWNLOAD EXAMIANS APP
Illumination Wave length for red colour is around 600 nm. 500 nm. 400 nm. 700 nm. 600 nm. 500 nm. 400 nm. 700 nm. ANSWER DOWNLOAD EXAMIANS APP
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