Illumination Luminous efficiency of a fluorescence lamp is 70 lumens / watt. 60 lumens / watt. 30 lumens / watt. 40 lumens / watt. 70 lumens / watt. 60 lumens / watt. 30 lumens / watt. 40 lumens / watt. ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the total flux emitted by a source of 60 candle power? None of these. 754.2 lumens. 0.001326 lumens. 60 lumens. None of these. 754.2 lumens. 0.001326 lumens. 60 lumens. ANSWER DOWNLOAD EXAMIANS APP
Illumination The illumination at a point 5 meters below a lamp in 6 lux. The candle power of the lamp is 150. 140. 200. 30 150. 140. 200. 30 ANSWER DOWNLOAD EXAMIANS APP
Illumination Which cells in the eye are responsible for scotopic vision? Both ‘a’ and ‘b’ Cone cells None of these Rod cells Both ‘a’ and ‘b’ Cone cells None of these Rod cells ANSWER DOWNLOAD EXAMIANS APP
Illumination ___________________________ factor is defined as the ratio of the illumination when everything is clean to illumination under normal working conditions. Absorption factor. Depreciation. Maintenance. Utilization. Absorption factor. Depreciation. Maintenance. Utilization. ANSWER DOWNLOAD EXAMIANS APP
Illumination Wave length for red colour is around 400 nm. 500 nm. 700 nm. 600 nm. 400 nm. 500 nm. 700 nm. 600 nm. ANSWER DOWNLOAD EXAMIANS APP
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