Illumination Which lamps can be directly connected to a solar cell? Compact Fluorescent LED Metal Halide Incandescent Compact Fluorescent LED Metal Halide Incandescent ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of degree. radians. steredians. radians / meter. degree. radians. steredians. radians / meter. 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 None of these Both ‘a’ and ‘b’ To convert AC to DC To convert DC to AC None of these Both ‘a’ and ‘b’ ANSWER DOWNLOAD EXAMIANS APP
Illumination Wave length for red colour is around 600 nm. 500 nm. 400 nm. 700 nm. 600 nm. 500 nm. 400 nm. 700 nm. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has the best Colour Rendering Index (CRI)? High pressure sodium vapour LED Incandescent Fluorescent High pressure sodium vapour LED Incandescent Fluorescent 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 Lambert’s cosine law. 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 ANSWER DOWNLOAD EXAMIANS APP
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