Illumination Candela/metre square is the unit of which photometric quantity? Luminous flux Luminance Luminous Intensity Illuminance Luminous flux Luminance Luminous Intensity Illuminance ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the total flux emitted by a source of 60 candle power? 0.001326 lumens. 754.2 lumens. None of these. 60 lumens. 0.001326 lumens. 754.2 lumens. None of these. 60 lumens. 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 12.5 lux. 17.5 lux. 18.5 lux. 13.5 lux. 12.5 lux. 17.5 lux. 18.5 lux. 13.5 lux. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp is best suited for lighting an International sports arena? Metal Halide Compact Fluorescent Incandescent LED Metal Halide Compact Fluorescent Incandescent LED ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the number of lamps, each having 300 lumens, required to obtain an average illuminance of 50 lux on a 4m × 3m rectangular room? 5 6 2 4 5 6 2 4 ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of radians / meter. radians. steredians. degree. radians / meter. radians. steredians. degree. ANSWER DOWNLOAD EXAMIANS APP