Physics, 11.02.2021 17:10 please1133
A certain green light bulb emits at a single wavelength of 550 nm. It consumes 55 W of electrical power and is 75% efficient in converting electrical energy into light. (a) How many photons does the bulb emit in one hour? (b) Assuming the emitted photons to be distributed uniformly in space, how many photons per second strike a 10 cm by 10 cm paper held facing the bulb at a distance of 1.0 m?
Answers: 1
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A certain green light bulb emits at a single wavelength of 550 nm. It consumes 55 W of electrical po...
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