What is the unit of measurement for luminous intensity in the SI system?
A. Candela
B. Lux
C. Lumen
D. Watt
Answer:A
What is the unit of measurement for luminous intensity in the SI system?
A. Candela B. Lux C. Lumen D. Watt
Explanation: The cand (cd) is the unit of measurement for luminous intensity in the SI system. It is defined as the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540 x 1012 hertz and that has a radiant intensity in that direction of 1/683 watt per steradian.