Illumination In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to absorption factor. utilization factor. beam factor. waste light factor. absorption factor. utilization factor. beam factor. waste light factor. 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 Lambert’s cosine law. law of square inverse. None of these both A and B. Lambert’s cosine law. law of square inverse. None of these both A and B. ANSWER DOWNLOAD EXAMIANS APP
Illumination Total flux or lumens required in any lighting scheme depends inversely on None of these reduction factor. reflection factor. utilization factor. None of these reduction factor. reflection factor. utilization factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Unit of luminous flux is lumens. candela. lux. steradians. lumens. candela. lux. steradians. 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 13.5 lux. 18.5 lux. 17.5 lux. 12.5 lux. 13.5 lux. 18.5 lux. 17.5 lux. 12.5 lux. ANSWER DOWNLOAD EXAMIANS APP
Illumination Illumination can be expressed in candela. radians. lumens. lux. candela. radians. lumens. lux. ANSWER DOWNLOAD EXAMIANS APP
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