All Questions
Tagged with wavelength electrons
34
questions
2
votes
1
answer
186
views
In inelastic scattering between photons and electrons, how does light only partially transfer energy?
In the case of elastic scattering or absorption between photons and electrons, the incident light is either fully reflected or fully absorbed and hence it either retains its wavelength or ceases to ...
- 441
-1
votes
1
answer
36
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Energy level photon spectra for different atoms
I'm trying to determine the photon emission wavelength ranges for different atoms.
For hydrogen, it's super simple. We use the $$ E_n = -\frac{13.6}{n^2} $$
Then, if we want to see the wavelength of ...
- 200
0
votes
3
answers
174
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What does it mean when people (physicists) say electron has a wavelength of $x$ unit of length physically?
When we discuss about the wavelength of em(electromagnetic) wave's wavelength,
It is meant we are talking about the tip to tip of the oscillation of electrical and magnetic field in physical space.
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0
votes
0
answers
116
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Can Wavelength also be used as Circumference?
Could Lights wavelength be the result of the electron orbits and its distance? Could this be why wavelength and orbit circumference measurements are the same?
This would imply that wavelength radius ...
- 1
0
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1
answer
519
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Does the Rydberg Formula work if the electron is going from lower to higher levels?
In all of the internet, all I see is examples about the Rydberg Formula about an electron going from higher levels to lower levels (like from $n=6$ to $n=3$ ), and it does make sense to be honest, ...
- 101
3
votes
4
answers
2k
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Electron wavelength vs. light(s) wavelengths
I am doing some research into wave and waveform. I am looking at different types of microscopy for potential purchase. However, I came across Max Knoll a minute ago and I am curious as to how ...
- 31
1
vote
0
answers
681
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Calculating the wavelength of incident photon in Compton scattering event
'In the Compton scattering event, the scattered photon has an energy of $120$ keV and the recoiling electron has an energy of $40$ keV. Find the wavelength of the incident photon.'
I thought, to solve ...
- 11
2
votes
1
answer
74
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If ordinary electron microscopes have wavelengths 5,000 times or more shorter than visible light, why can't they see atoms?
Electron microscopes can easily 'see' down to .1 nanometers (1 ångstrom) or less, correct? And a single hydrogen atom, in its ground state, is about .106 nanometers (Bohr diameter) wide, right?
So ...
- 4,509
0
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2
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36
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How can an electron's de Broglie wavelength be LONGER than .0024264 nanometers?
If the rest mass of an electron is about 510,998.5 ev, or .5109985 Mev, doesn't that mean that even the slowest-moving electron has a wavelength of no more than .0024264 nanons?
That is the wavelength ...
- 4,509
2
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2
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1k
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Will an absorbed photon always be re-emitted with a different wavelength? [closed]
And if this is the case, what is the reason that the re-emitted photon (when the electron moves from an orbit to a further orbit) has a different wavelength than its wavelength when it was received?
- 49
0
votes
1
answer
650
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Why do atoms absorb photons at specific wavelengths and reflect photons at wavelengths other than the absorbed photons?
As we already know that the electron emits light photons when it travels from one orbit to another, and that causes this transition is the electron absorption of the incoming photon. But when the ...
- 49
4
votes
3
answers
3k
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Why are diffraction rings closer together when electrons travel at a greater speed in electron diffraction?
I know that at higher speeds the de Broglie wavelength decreases so the electrons diffract less, but does the fact electrons repel affect it in any other way?
What I was thinking was that since ...
- 799
0
votes
1
answer
58
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How do you combine wavelengths of particles in an atom?
As the problem below results in the wavelength of a single electron, how would this combine/interact with other particles? In an atom, for example.
- 11
0
votes
3
answers
120
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Energy levels of electrons in an arbitrary element?
Let's say I want to calculate the wavelength of the photon emitted when an electron of an arbitrary element (let's say Carbon) drops from $n=4$ to $n=3$.
Correct me if I'm wrong, but I think I would ...
- 113
0
votes
1
answer
430
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Is there a resolution limit to electron microscopes?
Is resolution limited only by the wavelength of the electron? Because then I would presume there is no limit to resolution as you could lower the wavelength of an electron by increasing the voltage of ...
- 1