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how does the Photoelectric effect support the particle theory of light?
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SnoopY.
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If you shine photons onto a sheet of a metallic plate with say, a very dim light. You might expect that electrons in orbit in atoms in the metal will keep absorbing energy and eventually they would have enough to fly out of orbit....
THIS DOESN'T HAPPEN.
What ACTUALLY happens is... Nothing. If you put more bulbs... Nothing happens.. .... 1000's of bulbs with the same frequency.. nothing happens.
It was discovered that if you start increasing the frequency, as soon as the photons hit the surface of the metal, electrons start flying off immediately.
This suggests, electrons only absorb "spoonfulls" of certain amounts energy or quanta. Which SUGGESTS that the photon is a distinct bundle of energy, similar to a particle.
I presume you're familiar with the bohr model?
Electrons exist in an atom at distinct energy levels.
THIS DOESN'T HAPPEN.
What ACTUALLY happens is... Nothing. If you put more bulbs... Nothing happens.. .... 1000's of bulbs with the same frequency.. nothing happens.
It was discovered that if you start increasing the frequency, as soon as the photons hit the surface of the metal, electrons start flying off immediately.
This suggests, electrons only absorb "spoonfulls" of certain amounts energy or quanta. Which SUGGESTS that the photon is a distinct bundle of energy, similar to a particle.
I presume you're familiar with the bohr model?
Electrons exist in an atom at distinct energy levels.
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username1533709
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#3
(Original post by SnoopY.)
If you shine photons onto a sheet of a metallic plate with say, a very dim light. You might expect that electrons in orbit in atoms in the metal will keep absorbing energy and eventually they would have enough to fly out of orbit....
THIS DOESN'T HAPPEN.
What ACTUALLY happens is... Nothing. If you put more bulbs... Nothing happens.. .... 1000's of bulbs with the same frequency.. nothing happens.
It was discovered that if you start increasing the frequency, as soon as the photons hit the surface of the metal, electrons start flying off immediately.
This suggests, electrons only absorb "spoonfulls" of certain amounts energy or quanta. Which SUGGESTS that the photon is a distinct bundle of energy, similar to a particle.
I presume you're familiar with the bohr model?
Electrons exist in an atom at distinct energy levels.
If you shine photons onto a sheet of a metallic plate with say, a very dim light. You might expect that electrons in orbit in atoms in the metal will keep absorbing energy and eventually they would have enough to fly out of orbit....
THIS DOESN'T HAPPEN.
What ACTUALLY happens is... Nothing. If you put more bulbs... Nothing happens.. .... 1000's of bulbs with the same frequency.. nothing happens.
It was discovered that if you start increasing the frequency, as soon as the photons hit the surface of the metal, electrons start flying off immediately.
This suggests, electrons only absorb "spoonfulls" of certain amounts energy or quanta. Which SUGGESTS that the photon is a distinct bundle of energy, similar to a particle.
I presume you're familiar with the bohr model?
Electrons exist in an atom at distinct energy levels.
Posted from TSR Mobile
Ty.Yes,I am fairly familiar with the Bohr model.
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username1533709
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#4
(Original post by SnoopY.)
If you shine photons onto a sheet of a metallic plate with say, a very dim light. You might expect that electrons in orbit in atoms in the metal will keep absorbing energy and eventually they would have enough to fly out of orbit....
THIS DOESN'T HAPPEN.
What ACTUALLY happens is... Nothing. If you put more bulbs... Nothing happens.. .... 1000's of bulbs with the same frequency.. nothing happens.
It was discovered that if you start increasing the frequency, as soon as the photons hit the surface of the metal, electrons start flying off immediately.
This suggests, electrons only absorb "spoonfulls" of certain amounts energy or quanta. Which SUGGESTS that the photon is a distinct bundle of energy, similar to a particle.
I presume you're familiar with the bohr model?
Electrons exist in an atom at distinct energy levels.
If you shine photons onto a sheet of a metallic plate with say, a very dim light. You might expect that electrons in orbit in atoms in the metal will keep absorbing energy and eventually they would have enough to fly out of orbit....
THIS DOESN'T HAPPEN.
What ACTUALLY happens is... Nothing. If you put more bulbs... Nothing happens.. .... 1000's of bulbs with the same frequency.. nothing happens.
It was discovered that if you start increasing the frequency, as soon as the photons hit the surface of the metal, electrons start flying off immediately.
This suggests, electrons only absorb "spoonfulls" of certain amounts energy or quanta. Which SUGGESTS that the photon is a distinct bundle of energy, similar to a particle.
I presume you're familiar with the bohr model?
Electrons exist in an atom at distinct energy levels.
Posted from TSR Mobile
Why is it that when the photon collides with the electron,and if the energy gained from the photon is enough for the electron to overcome the work function energy, why is it that the electron Is emitted instantaneously?
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SnoopY.
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Imagine a container of water filled to the brim, when water is added it spills over instantaneously. Although this is NOT an analogy of the photoelectric effect, the instantaneousness concept is similar.
Why should it not be emitted instantaneously?
Please let me know if I've misunderstood your question.
Why should it not be emitted instantaneously?
Please let me know if I've misunderstood your question.
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Kallisto
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#6
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#6
(Original post by Kadak)
The book just waffles about this. help!
The book just waffles about this. help!
If the light would act as a wave in photoelectric effect, every single electron were passed out, but that was not the case!
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User1824259
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Kallisto
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#8
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#8
(Original post by crosstalk)
Compton effect also supports the particle theory of light.
Compton effect also supports the particle theory of light.
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#9
(Original post by SnoopY.)
Imagine a container of water filled to the brim, when water is added it spills over instantaneously. Although this is NOT an analogy of the photoelectric effect, the instantaneousness concept is similar.
Why should it not be emitted instantaneously?
Please let me know if I've misunderstood your question.
Imagine a container of water filled to the brim, when water is added it spills over instantaneously. Although this is NOT an analogy of the photoelectric effect, the instantaneousness concept is similar.
Why should it not be emitted instantaneously?
Please let me know if I've misunderstood your question.
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Phichi
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#10
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#10
(Original post by Kadak)
Is it that when photon hits the electron and if it gets enough energy to overcome the work function,it leaves immediately because E =HF?
Is it that when photon hits the electron and if it gets enough energy to overcome the work function,it leaves immediately because E =HF?
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#11
(Original post by Phichi)
Do you understand what the work function is?
Do you understand what the work function is?
Posted from TSR Mobile
Work function is the energy required to break the metallic bond holding the delocalised electron to the surface of the metal?
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SnoopY.
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#12
(Original post by Kadak)
Posted from TSR Mobile
Work function is the energy required to break the metallic bond holding the delocalised electron to the surface of the metal?
Posted from TSR Mobile
Work function is the energy required to break the metallic bond holding the delocalised electron to the surface of the metal?
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