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Home Q & A Board Science-Related Homework Help Physics Astronomy
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barry barry
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10 years ago
Describe how Einstein used the photoelectric effect to support the particle theory of light and photons.
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10 years ago
He found that regardless of how intense the red light was, it would not cause a measurable output from the photocell.  Yet even a weak blue or ultraviolet source would cause a flow of current from the photocell.  So each photon must carry a discrete quanta of energy depending on its wavelength, with only the higher frequency photons carrying enough energy to stimulate current from the photocell.
Would you know my name, if I saw you in heaven?

Eric Clapton
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barry Authorbarry
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10 years ago
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