Illumination What will be the number of lamps, each having 300 lumens, required to obtain an average illuminance of 50 lux on a 4m × 3m rectangular room? 5 2 4 6 5 2 4 6 ANSWER DOWNLOAD EXAMIANS APP
Illumination Illumination can be expressed in lux. candela. lumens. radians. lux. candela. lumens. radians. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which cells in the eye are responsible for scotopic vision? Cone cells None of these Rod cells Both ‘a’ and ‘b’ Cone cells None of these Rod cells Both ‘a’ and ‘b’ ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp has the best Colour Rendering Index (CRI)? Fluorescent Incandescent High pressure sodium vapour LED Fluorescent Incandescent High pressure sodium vapour LED ANSWER DOWNLOAD EXAMIANS APP
Illumination Solid angle is expressed in terms of radians / meter. steredians. radians. degree. radians / meter. steredians. radians. degree. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp is best suited for lighting an International sports arena? LED Metal Halide Compact Fluorescent Incandescent LED Metal Halide Compact Fluorescent Incandescent ANSWER DOWNLOAD EXAMIANS APP
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