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Candela is the S.I. unit of _____

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in Chemistry – Class 11 by (148k points)
Candela is the S.I. unit of _____

(a) Luminous intensity

(b) Thermodynamic temperature

(c) Amount of substance

(d) Electric current

I have been asked this question during an online exam.

This intriguing question comes from Properties of Matter and their Measurement topic in chapter Chemistry Basic Concepts of Chemistry – Class 11

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Right answer is (a) Luminous intensity

The best explanation: Candela is an S.I. unit of luminous intensity with symbol cd. It’s termed a source emitting monochromatic radiation at frequency 540 x 10^12 Hertz with the radiant intensity of 1/683 watt per steradian provided in the same direction.

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