Illumination Total flux or lumens required in any lighting scheme depends inversely on reflection factor. None of these utilization factor. reduction factor. reflection factor. None of these utilization factor. reduction factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of radians. steredians. radians / meter. degree. radians. steredians. radians / meter. degree. ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela/metre square is the unit of which photometric quantity? Luminous Intensity Luminance Luminous flux Illuminance Luminous Intensity Luminance Luminous flux Illuminance ANSWER DOWNLOAD EXAMIANS APP
Illumination What is the work of a driver in case of an LED? Both ‘a’ and ‘b’ To convert AC to DC To convert DC to AC None of these Both ‘a’ and ‘b’ To convert AC to DC To convert DC to AC None of these ANSWER DOWNLOAD EXAMIANS APP
Illumination Wave length for red colour is around 700 nm. 400 nm. 500 nm. 600 nm. 700 nm. 400 nm. 500 nm. 600 nm. ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficiency of a fluorescence lamp is 40 lumens / watt. 60 lumens / watt. 30 lumens / watt. 70 lumens / watt. 40 lumens / watt. 60 lumens / watt. 30 lumens / watt. 70 lumens / watt. ANSWER DOWNLOAD EXAMIANS APP
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