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October 01, 2025, 10:19:13 am

Author Topic: wave model prediction for photoelectric effect (current)  (Read 1747 times)  Share 

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almostatrap

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wave model prediction for photoelectric effect (current)
« on: October 22, 2009, 11:43:34 am »
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What factor does the wave model predict will determine the photoelectric current?

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TrueTears

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Re: wave model prediction for photoelectric effect (current)
« Reply #1 on: October 22, 2009, 02:16:43 pm »
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1. Higher intensity light, delivering energy at a greater rate, would produce electrons with higher kinetic energies, thus the stopping potential difference would depend on intensity.

2. There would be a time delay while enough shared energy accumulated for electrons to escape and this delay would be shorter for higher intensity light.

3. The waiting time for electrons to emerge would be longer using lower frequency light, since its wavefronts arrive less frequently, how no matter what, a current will eventually be detected, thus a threshold frequency does not exist.
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almostatrap

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Re: wave model prediction for photoelectric effect (current)
« Reply #2 on: October 22, 2009, 10:07:22 pm »
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So if all other factors are constant, higher frequency would increase current?
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TrueTears

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Re: wave model prediction for photoelectric effect (current)
« Reply #3 on: October 22, 2009, 11:45:43 pm »
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A higher frequency increases the rate of wavefronts hitting the plate, so a current would be registered faster.
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Interested in asset pricing, econometrics, and social choice theory.