How is luminous flux related to radiant flux?

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Physics · Optics and Illumination

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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Correct answer

Luminous flux is radiant flux weighted by the human eye's sensitivity to visible light.

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Answer 1

Luminous flux is radiant flux weighted by the human eye's sensitivity to visible light.

Answer 2

Luminous flux is the total power emitted, including all wavelengths.

Answer 3

Luminous flux measures only infrared radiation.

Answer 4

Luminous flux is always equal to radiant flux.

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