Photoelectric Effect: Particle vs. Wave Theory Q&A

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SUMMARY

The discussion centers on the photoelectric effect, emphasizing how the cutoff frequency supports the particle theory of light over the wave theory. Participants clarify that the energy of a photon is directly proportional to its frequency, which explains why electrons are ejected from a metal when light hits it. The wave model fails to account for the cutoff frequency, as it suggests that only light intensity affects electron ejection, not frequency. This distinction is crucial for understanding the quantum nature of light.

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  • Basic knowledge of wave and particle theories of light
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fatal1
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I am having a bit of trouble understanding how a cutoff frequency would support the particle theory of light over the wave theory?
 
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What are your thoughts on these questions:

How is the energy of a photon related to its frequency?
What causes the electrons (of a metal for example) to be ejected when light hits it?
 
Last edited:
energy of photon would be porportional to its frequency, and I believe it gets ejected when it absorbs the photon's energy

I think I get it now. Because in the wave model, frequency would not effect how much energy the electrons are ejected with...only the intensity of the light would? So it can't explain the cutoff. Right?
 

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