Illumination In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to absorption factor. waste light factor. beam factor. utilization factor. absorption factor. waste light factor. beam factor. utilization factor. 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 Which lamp is best suited for lighting an International sports arena? Incandescent LED Metal Halide Compact Fluorescent Incandescent LED Metal Halide Compact Fluorescent ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficiency of a fluorescence lamp is 70 lumens / watt. 40 lumens / watt. 60 lumens / watt. 30 lumens / watt. 70 lumens / watt. 40 lumens / watt. 60 lumens / watt. 30 lumens / watt. ANSWER DOWNLOAD EXAMIANS APP
Illumination A 200 candle power lamp is hung 4 m above the centre of circular area of 5 m diameter. The illumination at centre of the area is 18.5 lux. 12.5 lux. 17.5 lux. 13.5 lux. 18.5 lux. 12.5 lux. 17.5 lux. 13.5 lux. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which cells in the eye are responsible for scotopic vision? Rod cells Both ‘a’ and ‘b’ Cone cells None of these Rod cells Both ‘a’ and ‘b’ Cone cells None of these ANSWER DOWNLOAD EXAMIANS APP
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