Question
Download Solution PDFCandela per square metre is the unit of ________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFLuminous Intensity (candela - cd): Luminous intensity is a measure of the amount of light emitted by a source in a particular direction. The unit of luminous intensity is the candela (cd).
Luminous Flux (lumen - lm): Luminous flux is the total amount of visible light emitted by a source, regardless of direction. The unit of luminous flux is the lumen (lm).
Illuminance (lux - lx): Illuminance is the amount of light falling on a surface per unit area. The unit of illuminance is the lux (lx), and it is measured in lumens per square meter.
Luminance (candela per square meter - cd/m²): Luminance is the measure of the brightness of a surface as perceived by an observer. It takes into account the intensity of the light emitted or reflected by the surface and the angle at which it is viewed. Luminance is measured in candelas per square meter (cd/m²).
In summary, candela per square meter (cd/m²) is specifically the unit used to measure luminance, which considers the intensity of light from a surface as perceived by an observer
Last updated on Jul 1, 2025
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