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. None of these law of square inverse. both A and B. Lambert’s cosine law. None of these law of square inverse. both A and B. ANSWER DOWNLOAD EXAMIANS APP
Illumination The range of visual spectrum is 300nm - 1000nm. 480nm - 1000nm. 480nm - 760nm. 300nm - 760nm. 300nm - 1000nm. 480nm - 1000nm. 480nm - 760nm. 300nm - 760nm. ANSWER DOWNLOAD EXAMIANS APP
Illumination Wave length for red colour is around 500 nm. 400 nm. 600 nm. 700 nm. 500 nm. 400 nm. 600 nm. 700 nm. 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 200. 150. 140. 30 200. 150. 140. 30 ANSWER DOWNLOAD EXAMIANS APP
Illumination The solid angle subtended by an area of 2400 cm2 on the surface of a sphere of diameter 1.2 m is 2 / 5. 1 / 3. 2 / 3. 3 / 2. 2 / 5. 1 / 3. 2 / 3. 3 / 2. ANSWER DOWNLOAD EXAMIANS APP
Illumination Total flux or lumens required in any lighting scheme depends inversely on reduction factor. utilization factor. None of these reflection factor. reduction factor. utilization factor. None of these reflection factor. ANSWER DOWNLOAD EXAMIANS APP
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