Illumination Unit of luminous flux is lumens. steradians. candela. lux. lumens. steradians. candela. lux. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has the best Colour Rendering Index (CRI)? Incandescent High pressure sodium vapour LED Fluorescent Incandescent High pressure sodium vapour LED Fluorescent ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has a negative Colour Rendering Index (CRI)? High pressure sodium vapour LED Fluorescent Low pressure sodium vapour High pressure sodium vapour LED Fluorescent Low pressure sodium vapour ANSWER DOWNLOAD EXAMIANS APP
Illumination What is the work of a driver in case of an LED? To convert DC to AC To convert AC to DC None of these Both ‘a’ and ‘b’ To convert DC to AC To convert AC to DC None of these Both ‘a’ and ‘b’ ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the total flux emitted by a source of 60 candle power? None of these. 60 lumens. 754.2 lumens. 0.001326 lumens. None of these. 60 lumens. 754.2 lumens. 0.001326 lumens. ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela is the unit of which? Wavelength. Luminous intensity. Luminous flux. Frequency. Wavelength. Luminous intensity. Luminous flux. Frequency. ANSWER DOWNLOAD EXAMIANS APP