Illumination Which lamp is best suited for lighting an International sports arena? Incandescent LED Compact Fluorescent Metal Halide Incandescent LED Compact Fluorescent Metal Halide ANSWER DOWNLOAD EXAMIANS APP
Illumination The illumination of the surface varies directly with cosine of the angle between normal to surface and direction of the inclined light is given by both A and B. law of square inverse. None of these Lambert’s cosine law. both A and B. law of square inverse. None of these Lambert’s cosine law. ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficiency of a fluorescence lamp is 70 lumens / watt. 40 lumens / watt. 30 lumens / watt. 60 lumens / watt. 70 lumens / watt. 40 lumens / watt. 30 lumens / watt. 60 lumens / watt. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has the best Colour Rendering Index (CRI)? Fluorescent LED High pressure sodium vapour Incandescent Fluorescent LED High pressure sodium vapour Incandescent ANSWER DOWNLOAD EXAMIANS APP
Illumination Unit of luminous flux is steradians. candela. lumens. lux. steradians. candela. lumens. lux. ANSWER DOWNLOAD EXAMIANS APP
Illumination What is the work of a driver in case of an LED? To convert AC to DC To convert DC to AC Both ‘a’ and ‘b’ None of these To convert AC to DC To convert DC to AC Both ‘a’ and ‘b’ None of these ANSWER DOWNLOAD EXAMIANS APP
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