Q. “Lux” is a unit of
A) Luminous intensity of a source
B) Illuminance on a surface
C) Transmission coefficient of a surface
D) Luminous efficiency of source of light
Explanation
The correct answer is Option B: Illuminance on a surface.
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.