Illumination Candela is the unit of which? Luminous intensity. Frequency. Luminous flux. Wavelength. Luminous intensity. Frequency. Luminous flux. Wavelength. ANSWER DOWNLOAD EXAMIANS APP
Illumination Total flux or lumens required in any lighting scheme depends inversely on reduction factor. reflection factor. utilization factor. None of these reduction factor. reflection factor. utilization factor. None of these ANSWER DOWNLOAD EXAMIANS APP
Illumination What is the ratio of illuminance at a point 5m just below a lamp emitting 100 candelas and at a point 5m away from the first point on the same horizontal plane? 2√2 : 1 1:2 1: 2√2 2:1 2√2 : 1 1:2 1: 2√2 2:1 ANSWER DOWNLOAD EXAMIANS APP
Illumination The range of visual spectrum is 300nm - 760nm. 480nm - 1000nm. 300nm - 1000nm. 480nm - 760nm. 300nm - 760nm. 480nm - 1000nm. 300nm - 1000nm. 480nm - 760nm. ANSWER DOWNLOAD EXAMIANS APP
Illumination The work of ballast in a fluorescent tube is to None of these. provide a kick start when voltage is induced. both ‘a’ and ‘b’. limit the flow of current. None of these. provide a kick start when voltage is induced. both ‘a’ and ‘b’. limit the flow of current. 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. Lambert’s cosine law. None of these both A and B. law of square inverse. Lambert’s cosine law. None of these ANSWER DOWNLOAD EXAMIANS APP
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