question: What is the definition of radiant luminous efficacy ?
answer: the ratio of the visible light flux emitted ( the luminous flux ) to the total power radiated over all wavelengths
turker_answer: The definition of radiant luminous efficacy is the ratio of the visible light flux emitted ( the luminous flux ) to the total power radiated over all wavelengths .
rule-based: The definition of radiant luminous efficacy is the ratio of the visible light flux emitted ( the luminous flux ) to the total power radiated over all wavelengths .