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%)

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Eyrk(邀請碼223160)
Eyrk(邀請碼223160)
詳解 #6590942
2025/08/05
2. Photons Emitted ...
(共 1094 字,隱藏中)
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