Linked Questions
14 questions linked to/from Photoelectric Effect, Why can't two quanta interact with an electron at the same time?
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Photoelectric effect – Why does one electron absorb only one photon?
When I read about the photoelectric effect, I came across this:
"The electrons could not absorb more than one photon to escape from the surface, they could not therefore absorb one quanta and then ...
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3
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3
answers
351
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Why electron do not eject out even when there is photon of less threshold energy with increasing in time [duplicate]
When photon having certain energy less than threshold energy strikes on the electron of metallic plate. Electron do not eject out. But my question is when photon are falling continuously then ...
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1
answer
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Photoelectric effect at low frequencies [duplicate]
Through the photoelectric effect among many others we learn that light is actually comprised of discreet quanta of energy. That's because of the energy of the emitted electrons as well as the minimum ...
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1
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1
answer
185
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Can an electron which is a bound in an atom absorb more than one photon at the same time? [duplicate]
Can an electron which is a bound in an atom absorb more than one photon at the same time ? In specific during photo-electric emission can an electron take in more than one photon if one photon doesn't ...
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3
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1
answer
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Photoelectric effect: Beginning of the complexities [duplicate]
We are taught that in photoelectric effect if the frequency of light is lower than the threshold, then no matter how long a metal is exposed to it there won't be any ejection of electrons.
This made ...
2
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0
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63
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Why not 2, 3, 4, or more photons can be absorbed by single electron? [duplicate]
During Photoelectric effect and other such phenomenon, when light is made to fall on metal surface, single photon is absorbed by the single electron present in metal atom. Why not 2, 3, 4, or more ...
- 115
0
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0
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photoelectric emission with multiple photons [duplicate]
Is it possible for two or more photons to collide simultaneously with one electron, resulting in the emission of that electron from the metal surface? I searched for two photon absorption and found ...
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0
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Why can't an electron absorb multiple photons? [duplicate]
I am quoting the following phrase from my book
" ... in Einstein's picture, photoelectric effect arises from the absorption of a single quantum of radiation by a single electron ... "
My ...
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5
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2
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3k
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What is a two-photon process?
I am reading some introductory materials on modern optics, in which they mention two-photon processes everywhere. I know fundamental optics and a bit on quantum mechanics. Can anyone explain in a ...
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3
votes
2
answers
18k
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Relationship between stopping potential and work function
Suppose I have a cathode with a work function of 3eV and an anode at a potential of 2V above the cathode. If a photon having 2eV of energy hits the cathode, what happens?
A. An electron is emitted ...
- 236
14
votes
2
answers
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Why don't atoms emit more than one photon during an energy level transition?
If you look at the emission spectrum of an atom, there are sharp lines corresponding to the different energy level transitions. That's because the single photon emitted during each transition carries ...
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3
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3
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980
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Is energy exchange quantized?
In the photoelectric effect there is a threshold frequency that must be exceeded, to observe any electron emission, I have two questions about this.
I) Lower than threshold:
What happen with lesser ...
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1
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1
answer
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Why doesn't intensity of light affect the emission of electrons?
So electrons of specific atoms have a minimum amount of energy needed to escape the atom, called the work function, W. Now let's say that you emit a certain frequency of light, and $hf<W$. However, ...
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0
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1
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437
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Why photon-electron energy transfer can't occur in steps or does it?
The process of exchange of energy between a photon and an electron only occur after a specific energy called work-function of the material. Thus, the energy transferred is quantised due to the fact ...
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