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 Wave length for red colour is around 400 nm. 700 nm. 500 nm. 600 nm. 400 nm. 700 nm. 500 nm. 600 nm. ANSWER DOWNLOAD EXAMIANS APP
Illumination What is the work of a driver in case of an LED? To convert AC to DC None of these To convert DC to AC Both ‘a’ and ‘b’ To convert AC to DC None of these To convert DC to AC Both ‘a’ and ‘b’ ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficiency of a fluorescence lamp is 40 lumens / watt. 60 lumens / watt. 70 lumens / watt. 30 lumens / watt. 40 lumens / watt. 60 lumens / watt. 70 lumens / watt. 30 lumens / watt. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which cells in the eye are responsible for scotopic vision? Both ‘a’ and ‘b’ Cone cells Rod cells None of these Both ‘a’ and ‘b’ Cone cells Rod cells None of these 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 150. 200. 30 140. 150. 200. 30 140. ANSWER DOWNLOAD EXAMIANS APP
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