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4 May, 11:49

The unit for measuring the rate at which light energy is radiated from a source is the

A. Angstrom.

B. lux.

C. lumen.

D. candela.

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  1. 4 May, 11:53
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    The correct answer is letter D. candela. The unit for measuring the rate at which light energy is radiated from a source is the candela. L umen is the unit for measuring the total amount of visible light emitted by a source. Lux is lumen per square meter.
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