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What Is The Unit Of Intensity Of Light?

January 24, 2024 by Leah Jackson

What Is The Unit Of Intensity Of Light? The basic SI unit of luminous intensity is candela. The brightness of an illuminated surface is measured in candela per square meter. Illuminance is the measure of light falling on a surface, whereas luminance is the light reflected from it or in some cases emitted by it.

What Is The Relationship Between Distance And Light Intensity?

January 24, 2024 by Emily Lee

What Is The Relationship Between Distance And Light Intensity? There is an inverse relationship between distance and light intensity – as the distance increases, light intensity decreases. This is because as the distance away from a light source increases, light energy becomes spread over a wider area. How much does light intensity decrease with distance?