Question

Candela is the SI unit of _________
1. Amount of substance
2. Solid angle
3. Luminous intensity
4. None of the above

Answer 1

Correct Answer - Option 3 : Luminous intensity

CONCEPT:

• The standard units of measurement defined by the ISU for the seven base quantities are SI base units.
• All other SI units are derived from it.
• 7 Basic SI units with their quantities: 

	Base quantities	Base SI units
1	Length	meter
2	mass	kilogram
3	time	second
4	electric current	ampere
5	temperature	kelvin
6	Luminous intensity	candela
7	amount of substance	mole

EXPLANATION:

• The SI unit of intensity is candela.
• It is one of the basic quantities.
• So the correct answer is option 3.