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Questions and Answers
What is the SI unit of measurement for light intensity?
What is the SI unit of measurement for light intensity?
- Lux
- Lumen
- Candela (correct)
- Watt
Which unit is used to measure the amount of light emitted by a source?
Which unit is used to measure the amount of light emitted by a source?
- Lux
- Watt
- Ampere
- Lumen (correct)
What is the unit of measurement for the brightness of light as perceived by the human eye?
What is the unit of measurement for the brightness of light as perceived by the human eye?
- Joule
- Candela
- Lux (correct)
- Lumen
Which unit is used to measure the power of light?
Which unit is used to measure the power of light?
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What is the unit of measurement for luminous flux?
What is the unit of measurement for luminous flux?
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Study Notes
Light Measurement Units
- The SI unit of measurement for light intensity is candela per square meter (cd/m²).
- The unit used to measure the amount of light emitted by a source is lumen (lm).
- The unit of measurement for the brightness of light as perceived by the human eye is candela (cd).
- The unit used to measure the power of light is watt (W).
- The unit of measurement for luminous flux is lumen (lm).
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