Illumination Candela is the unit of which? Luminous intensity. Luminous flux. Wavelength. Frequency. Luminous intensity. Luminous flux. Wavelength. Frequency. ANSWER DOWNLOAD EXAMIANS APP
Illumination The illumination of the surface varies directly with cosine of the angle between normal to surface and direction of the inclined light is given by Lambert’s cosine law. None of these both A and B. law of square inverse. Lambert’s cosine law. None of these both A and B. law of square inverse. ANSWER DOWNLOAD EXAMIANS APP
Illumination The work of ballast in a fluorescent tube is to both ‘a’ and ‘b’. provide a kick start when voltage is induced. None of these. limit the flow of current. both ‘a’ and ‘b’. provide a kick start when voltage is induced. None of these. limit the flow of current. ANSWER DOWNLOAD EXAMIANS APP
Illumination Which lamps can be directly connected to a solar cell? Compact Fluorescent LED Incandescent Metal Halide Compact Fluorescent LED Incandescent Metal Halide ANSWER DOWNLOAD EXAMIANS APP
Illumination Which cells in the eye are responsible for scotopic vision? Cone cells Both ‘a’ and ‘b’ None of these Rod cells Cone cells Both ‘a’ and ‘b’ None of these Rod cells ANSWER DOWNLOAD EXAMIANS APP
Illumination What is the work of a driver in case of an LED? To convert DC to AC None of these To convert AC to DC Both ‘a’ and ‘b’ To convert DC to AC None of these To convert AC to DC Both ‘a’ and ‘b’ ANSWER DOWNLOAD EXAMIANS APP
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