Question:
What is the SI unit of Luminous Intensity?
What is the SI unit of Luminous Intensity?
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Among the seven SI base units, Candela represents luminous intensity.
Updated On: Apr 23, 2026
- Lux
- Candela
- Lumen
- Watt
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The Correct Option is B
Solution and Explanation
Concept:
Luminous intensity is a photometric quantity that measures the amount of visible light emitted by a source in a particular direction. It represents how bright a light source appears in a given direction. In the International System of Units (SI), luminous intensity is one of the seven fundamental physical quantities.
Step 1: Identify the SI base unit
The SI base unit for luminous intensity is the candela (cd).
Step 2: Understanding other related units
• Lumen: Unit of luminous flux.
• Lux: Unit of illumination.
• Watt: Unit of power. Conclusion:
Thus, the SI unit of luminous intensity is Candela.
Luminous intensity is a photometric quantity that measures the amount of visible light emitted by a source in a particular direction. It represents how bright a light source appears in a given direction. In the International System of Units (SI), luminous intensity is one of the seven fundamental physical quantities.
Step 1: Identify the SI base unit
The SI base unit for luminous intensity is the candela (cd).
Step 2: Understanding other related units
• Lumen: Unit of luminous flux.
• Lux: Unit of illumination.
• Watt: Unit of power. Conclusion:
Thus, the SI unit of luminous intensity is Candela.
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