Illumination Solid angle is expressed in terms of degree. steredians. radians / meter. radians. degree. steredians. radians / meter. radians. ANSWER DOWNLOAD EXAMIANS APP
Illumination A 1000 W bulb fitted with a reflector illuminates an area of 3 m x 3 m with an average illumination of 450 lux. If the bulb has and efficiency of 9 lumens / watt the efficiency of the reflector is 30 %. 20 %. 70 %. 45 %. 30 %. 20 %. 70 %. 45 %. ANSWER DOWNLOAD EXAMIANS APP
Illumination In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to absorption factor. utilization factor. waste light factor. beam factor. absorption factor. utilization factor. waste light factor. beam factor. 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 2 / 5. 2 / 3. 3 / 2. 1 / 3. 2 / 5. 2 / 3. 3 / 2. 1 / 3. ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela is the unit of which? Luminous flux. Wavelength. Luminous intensity. Frequency. Luminous flux. Wavelength. Luminous intensity. Frequency. 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 200. 140. 30 150. 200. 140. 30 150. ANSWER DOWNLOAD EXAMIANS APP
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