Illumination Solid angle is expressed in terms of degree. radians / meter. steredians. radians. degree. radians / meter. steredians. radians. ANSWER DOWNLOAD EXAMIANS APP
Illumination Luminous efficacy of a typical HPSV lamp is in between 10 - 40 lm/watt 70 - 120 lm/watt. 40 - 70 lm/watt. 120 - 200 lm/watt. 10 - 40 lm/watt 70 - 120 lm/watt. 40 - 70 lm/watt. 120 - 200 lm/watt. ANSWER DOWNLOAD EXAMIANS APP
Illumination What will be the total flux emitted by a source of 60 candle power? 60 lumens. None of these. 754.2 lumens. 0.001326 lumens. 60 lumens. None of these. 754.2 lumens. 0.001326 lumens. 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
Illumination A 200 candle power lamp is hung 4 m above the centre of circular area of 5 m diameter. The illumination at centre of the area is 12.5 lux. 18.5 lux. 17.5 lux. 13.5 lux. 12.5 lux. 18.5 lux. 17.5 lux. 13.5 lux. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which cells in the eye are responsible for scotopic vision? Both ‘a’ and ‘b’ None of these Rod cells Cone cells Both ‘a’ and ‘b’ None of these Rod cells Cone cells ANSWER DOWNLOAD EXAMIANS APP
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