All Questions
Tagged with electromagnetic-radiation photons
622
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How is it possible that photons already move at the speed of light the moment they pop into existence? [duplicate]
This is a thought experiment and I might be horribly wrong. If we have an electron-positron annihilation a photon pops into existence. This photon is then supposedly moving at speed of light at the ...
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2
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143
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Analogy between the Electromagnetic Field and the Schrodinger Equation
In this answer my2cts says "The electromagnetic field is to photons what the Schrödinger or Klein-Gordon wave function is to electrons." Could someone expand on this further? Is this just a ...
- 126
3
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2
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124
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Are EM waves telling us the probability of finding a photon?
I feel like I've been frequently presented with an interpretation of EM waves that goes something like this:
Light is an oscillating electromagnetic field. Because changes in the electric field ...
- 203
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2
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84
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Emission of a single photon
When a single photon is emitted as a result of an electronic transition, it will have a defined energy and wavelength. However, its amplitude is not constant over infinite space and time; instead, it ...
- 379
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What is the difference between photons and electromagnetic waves?
Electromagnetic waves are generated by accelerating electric charges.
Photons on the other hand, tend to describe something different, specifically the particle nature of electromagnetic waves as ...
- 192
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2
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63
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Which factors determines whether a photon is absorbed? [duplicate]
After some research, I figured out that all EM waves/photons are absorbed by atoms by exciting an electron from an orbital to an other. However, atoms emit only certain EM waves with specific ...
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1
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Why does there need to be a particle representation of light?
Why does there need to be a particle representation of light? Doesn't light as a wave explained the observations of the photoelectric perfectly? When the frequency of light is increased, the speed of ...
0
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2
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161
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Electromagnetic field affect on hydrogen atom energy levels
If hydrogen atom is in the ground energy state it must be hitted by photon with energy higher than electron proton energy binding which is 13,6 eV according quantum mechanics. Proton have positive ...
- 119
8
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2
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How does a photon "cheat" its way past a neutron?
I learnt here Is a neutron deflected sideways by a laser beam? that a photon beam has no influence on the motion of a free neutron in the first and second approximation. Now I'm interested in what ...
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Tunnel ionisation and how to interpret changes in potential curve
I have been doing some literature review on species ionisation to understand a particular mechanism that occurs when a high-intensity femtosecond laser interacts with molecular nitrogen to produce ...
-1
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1
answer
70
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Does this explanation of wave-particle duality correspond with any existing formal explanation?
Imagine a tsunami wave. Out at sea, it slowly raises the water level not more than a few inches or feet, and passes by standing boats with barely any resultant turbulence. It moves very fast, but it's ...
- 109
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How does the current flow in the Hertz expermiment when reverse voltage is applied and the polarity of the electrodes is reversed?
In the Hertz experiment, when light falls on the anode, electrons are emitted and they move towards the cathode and thus flow through the circuit.
However, when reverse voltage is applied and the ...
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How do the forces involved in EMR continue to occilate past emmision of a photon
If electric fields are created by an accelerated charged particle, such as an electron, and magnetic fields are generated by electric fields in motion, what are the individual fields that make up ...
0
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2
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87
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Photons don't wiggle perpendicular to their direction of travel do they?
Every 3D visual explaining a photon shows the photon moving through space (let's say on Z axis), with electric component wiggling up and down on the Y axis, and magnetic component wiggling left and ...
- 123
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Photon emission rate frequency dependency
I am puzzling over the dependence of the energy flux of electromagnetic radiation on the frequency of the source.
The power radiated in any direction or solid angle from a charged particle ...
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