Illumination Which lamps can be directly connected to a solar cell? Metal Halide Compact Fluorescent Incandescent LED Metal Halide Compact Fluorescent Incandescent LED ANSWER DOWNLOAD EXAMIANS APP
Illumination Candela/metre square is the unit of which photometric quantity? Luminance Illuminance Luminous Intensity Luminous flux Luminance Illuminance Luminous Intensity Luminous flux ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamp is best suited for lighting an International sports arena? Incandescent LED Metal Halide Compact Fluorescent Incandescent LED Metal Halide Compact Fluorescent ANSWER DOWNLOAD EXAMIANS APP
Illumination What is the work of a driver in case of an LED? Both ‘a’ and ‘b’ To convert DC to AC To convert AC to DC None of these Both ‘a’ and ‘b’ To convert DC to AC To convert AC to DC None of these ANSWER DOWNLOAD EXAMIANS APP
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? 6 5 4 2 6 5 4 2 ANSWER DOWNLOAD EXAMIANS APP
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