Illumination In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to waste light factor. utilization factor. absorption factor. beam factor. waste light factor. utilization factor. absorption factor. beam 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 None of these both A and B. law of square inverse. Lambert’s cosine law. None of these both A and B. law of square inverse. Lambert’s cosine law. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamps can be directly connected to a solar cell? Compact Fluorescent LED Incandescent Metal Halide Compact Fluorescent LED Incandescent Metal Halide 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 140. 200. 30 150. 140. 200. 30 150. ANSWER DOWNLOAD EXAMIANS APP
Illumination The solid angle subtended by an area of 2400 cm2 on the surface of a sphere of diameter 1.2 m is 1 / 3. 2 / 3. 2 / 5. 3 / 2. 1 / 3. 2 / 3. 2 / 5. 3 / 2. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which among the following lamps has the maximum burning hours? Incandescent. LED. Compact Fluorescent. Metal halide. Incandescent. LED. Compact Fluorescent. Metal halide. ANSWER DOWNLOAD EXAMIANS APP
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