All Questions
13
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How many photons pass through us every second?
I just read this answer https://physics.stackexchange.com/a/229374, which says that, when a magnet rotates, photons are emitted with wavelength $λ=c/f$, where $f$ is the frequency of rotation. And ...
- 185
0
votes
3
answers
558
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What produces the electromagnetic fields in the light wave when photons are chargeless?
If there’s an electromagnetic field in the propagating light wave there must be an electric charge producing it, but photons are charge less, so how are these electric and magnetic fields produced and ...
- 697
2
votes
1
answer
93
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Photon emmision from an accelerating particle
How does an accelerating charged particle emit a quantized photon?
Quantization of light makes sense to me if we were talking about vibrating charged particles or electron orbitals. But what about a ...
- 434
4
votes
2
answers
416
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If Photons do not have 'charge,' how do microwaves which use the negative and positive polarity of the wave agitate $\rm H_2O$?
As far as i have understood it, Photons do not have Charge. Charge as i have understood it is the Positive and Negative charge of an atom.
In context to $\rm H_2O$ being a polar molecule, microwaves ...
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1
vote
2
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193
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Can we charge a ray of light? Can photons never be charged under any circumstances? [closed]
can quantum theory never explain the hypothetical phenomena of charging photons? were there any experiments in this feild?
- 11
-1
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2
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128
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How can the quanta of electromagnetism be photons if they have no mass? [closed]
I thought charge only existed when mass was present. Does this mean String Theory hypothesizes photons having charge?
- 91
0
votes
2
answers
99
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How likely is it that photons will interact with electrons?
Electrons are incredibly small, and the "size" of photons (or the distance away from one required to not interact with it) is also incredibly small. Yet photons still interact with electrons all the ...
16
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2
answers
4k
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How electromagnetic waves are created?
Macroscopically, electromagnetic waves are produced by a changing dipole or an oscillating charged particle as shown below:
In this case, the frequency of the electromagnetic radiation is equal to ...
- 251
6
votes
4
answers
2k
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What carries electric field through space?
A stationary charge "creates" a constant (but not uniform) electric field around it, and a moving charge "creates" a variable electric field around it. What "carries" the information about the ...
- 3,254
0
votes
1
answer
281
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Accelerating electric charge
We know that massive bodies attract gas clouds that become ionized and the resulting acceleration can emit very high energy photons.
In a case where a proton for example is undergoing prolonged ...
- 236
3
votes
1
answer
2k
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Electric charge of light? [duplicate]
Light (or any radiation as a matter of fact) is an electromagnetic wave so why doesn't it have a electric charge associated with it?
As far as I know only static or flowing electric chargers can ...
- 53
2
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3
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11k
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If photons can be absorbed by electrons, wouldn't that mean light has a charge? [duplicate]
I am a biochemistry and molecular biology major. If photons can be absorbed by electrons, wouldn't that mean light has a charge? Electrons only attract positive charges. Isn't it?
- 21
3
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4
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4k
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If electromagnetic fields give charge to particles, do photons carry charge?
As I understand these two statements:
An electromagnetic field gives particles charge
A photon is a quantum of electromagnetic field
It must mean that a photon carries charge. But I guess it isn't ...
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