Illumination Unit of luminous flux is candela. lux. steradians. lumens. candela. lux. steradians. lumens. 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? 2:1 2√2 : 1 1:2 1: 2√2 2:1 2√2 : 1 1:2 1: 2√2 ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela is the unit of which? Wavelength. Frequency. Luminous flux. Luminous intensity. Wavelength. Frequency. Luminous flux. Luminous intensity. ANSWER DOWNLOAD EXAMIANS APP
Illumination In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to utilization factor. absorption factor. waste light factor. beam factor. utilization factor. absorption factor. waste light factor. beam factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination The work of ballast in a fluorescent tube is to None of these. limit the flow of current. provide a kick start when voltage is induced. both ‘a’ and ‘b’. None of these. limit the flow of current. provide a kick start when voltage is induced. both ‘a’ and ‘b’. ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela/metre square is the unit of which photometric quantity? Luminous Intensity Luminous flux Luminance Illuminance Luminous Intensity Luminous flux Luminance Illuminance ANSWER DOWNLOAD EXAMIANS APP
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