Question

What is 1 Candela ? Explain

Answer 1

The candela (abbreviation, cd) is the standard unit of luminous intensity in the International System of Units ( SI ). It is formally defined as the magnitude of an electromagnetic field , in a specified direction, that has a power level of 1/683 watt (1.46 x 10 -3 W) per steradian at a frequency of 540 terahertz (540 THz or 5.40 x 10 14 Hz ).

Answer 2

candala is si base unit
luminous intensity