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Question 8ci- january 2010 g482 ocr physics
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runny4
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#1
in the examiner's report it says: A common misconception was to use the de Broglie wavelength and the energy expression for a photon instead
Why couldn't you do this?
Why couldn't you do this?
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Duskstar
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#2
(Original post by runny4)
in the examiner's report it says: A common misconception was to use the de Broglie wavelength and the energy expression for a photon instead
Why couldn't you do this?
in the examiner's report it says: A common misconception was to use the de Broglie wavelength and the energy expression for a photon instead
Why couldn't you do this?
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runny4
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#3
(Original post by Duskstar)
The question is about electrons, not photons, which is why you can't use the energy expression for a photon.
The question is about electrons, not photons, which is why you can't use the energy expression for a photon.
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#4
(Original post by runny4)
but isn't the energy of a photon equal to the energy of the electron
but isn't the energy of a photon equal to the energy of the electron
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runny4
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#5
(Original post by Duskstar)
No. An electron is a lepton; a photon is a quanta of energy, and can have the same energy as an electron, but not necessarily.
No. An electron is a lepton; a photon is a quanta of energy, and can have the same energy as an electron, but not necessarily.
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#6
(Original post by runny4)
but energy is conserved in the photoelectric effect.
but energy is conserved in the photoelectric effect.
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runny4
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#7
(Original post by Duskstar)
The question had nothing to do with the photoelectric effect - it was about moving an electron through an electric field or something.
The question had nothing to do with the photoelectric effect - it was about moving an electron through an electric field or something.
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#8
(Original post by runny4)
what is a lepton
what is a lepton
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