The unit of luminous flux is :
Correct! Wrong!
direct lighting method of illumination used in:
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In the indirect lighting method of lighting about how much percentage of light falls on the surface?
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A gas filled filament lamp, the gas used is:
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The source of illumination for a cinema projector is:
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a mercury vapour lamp gives:
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In case of frosted GLS lamps frosting is done by:
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A fluorescent lamp can operate on :
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Lumen /Watt is the unit of
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one lux is the same as :
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Candela is the unit of
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Which of the following material can be used for the filaments in incandescent lamps?
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A zero watt lamp consumes:
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Efficiency of Halogen lamp
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the unit of solid angle is
Correct! Wrong!
Illumination Quiz
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