(a) If the average frequency emitted by a 200-W light bulb
Chapter 38, Problem 38.30(choose chapter or problem)
(a) If the average frequency emitted by a 200-W light bulb is and 10.0% of the input power is emitted as visible light, approximately how many visible-light photons are emitted per second? (b) At what distance would this correspond to visible-light photons per square centimeter per second if the light is emitted uniformly in all directions?
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