Illumination The range of visual spectrum is 300nm - 760nm. 300nm - 1000nm. 480nm - 1000nm. 480nm - 760nm. 300nm - 760nm. 300nm - 1000nm. 480nm - 1000nm. 480nm - 760nm. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has a negative Colour Rendering Index (CRI)? Fluorescent Low pressure sodium vapour High pressure sodium vapour LED Fluorescent Low pressure sodium vapour High pressure sodium vapour LED ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the total flux emitted by a source of 60 candle power? 754.2 lumens. 0.001326 lumens. 60 lumens. None of these. 754.2 lumens. 0.001326 lumens. 60 lumens. None of these. ANSWER DOWNLOAD EXAMIANS APP
Illumination Wave length for red colour is around 700 nm. 600 nm. 500 nm. 400 nm. 700 nm. 600 nm. 500 nm. 400 nm. ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela is the unit of which? Frequency. Luminous flux. Wavelength. Luminous intensity. Frequency. Luminous flux. Wavelength. Luminous intensity. 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 %. 45 %. 20 %. 70 %. 30 %. 45 %. 20 %. 70 %. ANSWER DOWNLOAD EXAMIANS APP
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