Illumination The work of ballast in a fluorescent tube is to limit the flow of current. provide a kick start when voltage is induced. None of these. both ‘a’ and ‘b’. limit the flow of current. provide a kick start when voltage is induced. None of these. both ‘a’ and ‘b’. 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 / 3. 1 / 3. 2 / 5. 3 / 2. 2 / 3. 1 / 3. 2 / 5. 3 / 2. ANSWER DOWNLOAD EXAMIANS APP
Illumination In illumination technology total lumens emitted by source / total lumens available after waste of light is equal to absorption factor. waste light factor. beam factor. utilization factor. absorption factor. waste light factor. beam factor. utilization factor. ANSWER DOWNLOAD EXAMIANS APP
Illumination Illumination can be expressed in radians. lumens. lux. candela. radians. lumens. lux. candela. 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. 30 140. 200. 150. 30 140. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which cells in the eye are responsible for scotopic vision? None of these Rod cells Cone cells Both ‘a’ and ‘b’ None of these Rod cells Cone cells Both ‘a’ and ‘b’ ANSWER DOWNLOAD EXAMIANS APP
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