Multiple choice general knowledge science & technology

Unit Lux corresponds to the measure

  1. Light

  2. Heat

  3. Illuminance

  4. Sunlight
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Lux is the SI unit of illuminance, which measures luminous flux (light power perceived by human eye) per unit area. It is distinct from luminous intensity (candela) or luminous flux (lumen). Illuminance describes how much light falls on a surface.

Keep practicing — related questions