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The rate at which light energy is radiated from a source is measured in which of the following units? A. Lux B. Angstrom C. Lumen D. Candela
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The rate at which light energy is radiated from a source is measured in which of the following units?

A. Lux
B. Angstrom
C. Lumen
D. Candela

User Oyinkansola
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1 Answer

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Answer is Option C Lumen.It is also known as luminous energy. 
User Jshanley
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