Illumination Which lamp has a negative Colour Rendering Index (CRI)? LED Fluorescent High pressure sodium vapour Low pressure sodium vapour LED Fluorescent High pressure sodium vapour Low pressure sodium vapour ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficiency of a fluorescence lamp is 40 lumens / watt. 30 lumens / watt. 60 lumens / watt. 70 lumens / watt. 40 lumens / watt. 30 lumens / watt. 60 lumens / watt. 70 lumens / watt. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which cells in the eye are responsible for scotopic vision? Both ‘a’ and ‘b’ Rod cells None of these Cone cells Both ‘a’ and ‘b’ Rod cells None of these Cone cells ANSWER DOWNLOAD EXAMIANS APP
Illumination The work of ballast in a fluorescent tube is to limit the flow of current. both ‘a’ and ‘b’. provide a kick start when voltage is induced. None of these. limit the flow of current. both ‘a’ and ‘b’. provide a kick start when voltage is induced. None of these. ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of radians / meter. degree. steredians. radians. radians / meter. degree. steredians. radians. 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 140. 150. 30 200. 140. 150. 30 200. ANSWER DOWNLOAD EXAMIANS APP
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