一、請解微分方程式 (20%)

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Chia Chung

詳解 #5776372

2023/04/13

<Solution>Solv...

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2. A special kind of lightbulb emits monochromatic light of wavelength 630 nm. Electrical energy is supplied to it at the rate of 60 W, and the bulb is 93% efficient at converting that energy to light energy. How many photons are emitted by the bulb during its lifetime of 730 hours? (10%)

一、請解微分方程式 (20%)

詳解 (共 1 筆)

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