clarification
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clarification
Once a light is at a certain frequency electrons are ejected, but if the energy is less than the workfunction, then does the electron only rise one energy level and then go back down.
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Re: clarification
If the energy of the incident light is less than the amount of energy needed to remove an electron from the metal (the work function/threshold energy), then nothing will happen, since the energy of the light must be greater than the work function. I hope this helps!
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Re: clarification
I understand that no electrons will be removed if the energy does not equal the work function, but as Krish said, wouldn't the electrons still be energized or have some sort of reaction?
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Re: clarification
Since the equation used here is E = hv - phi, we know that the energy of the photon depends on the frequency. In your scenario, you said that electrons are being ejected at this frequency but somehow the energy is not enough to overcome the work function. This scenario could not happen though because if the frequency of the photon is enough to eject electrons, that means it is already overcoming the work function.
Also, if you're just talking about if a photon doesn't enough energy to overcome the work function in general, then since you know electrons move in discrete levels, anything less than work function would not move/eject it.
Also, if you're just talking about if a photon doesn't enough energy to overcome the work function in general, then since you know electrons move in discrete levels, anything less than work function would not move/eject it.
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Re: clarification
If the energy is not enough to move the e- up a level, then the energy will not get taken in.
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Re: clarification
I think William explained it really well, especially towards the last part of his explanation. To move an electron, you already have to have enough energy in the photon to overcome the work function.
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Re: clarification
I believe that if the energy of the incoming photon is less than the work function, then nothing will happen. This is just like in the photoelectric effect, when the wavelength of the light was too large to have enough energy to excite the electrons.
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Re: clarification
If the energy is less than the work function, then the energy will be insufficient to move the electron to an excited state.
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Re: clarification
If the energy is less than the energy needed to remove an electron, nothing will happen and the energy will just go right through.
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Re: clarification
If the energy of a photon is less than the work function, the electrons will remain at the same energy level and the energy of the photon will not be absorbed. Energy of a photon must be equal to or greater than the work function in order for electrons to move to a higher energy level.
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Re: clarification
From my understanding, I think the electron will not move at all because it doesn't absorb the energy unless it's equal to or exceeds the work function.
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Re: clarification
Essentially, when you don’t have beeping energy, the electron doesn’t reach the next level. It’s partially there, but it eventually falls back down as it doesn’t have enough energy to surpass the threshold needed to go to another orbital level.
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