All Questions
Tagged with wavelength photons
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Does the energy of a photon in comoving space change?
Assuming a flat FLRW universe that is expanding: In comoving space, does the energy of a photon decrease or stay constant? A physical argument for this would be nice.
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The Role of Harmonic Frequencies in Natural Phenomena
I am deeply fascinated by the apparent intrinsic relationship between harmonic frequencies and the natural world. This relationship is evident not only in the mathematics that simplify our description ...
- 85
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Are intensity vs wavelength graphs really continuous? [duplicate]
For hot bodies we generally draw graph between intensity and wavelength similar to one in picture.
My question is this graph really continous?
If it is continuous, does it not mean there are infinte ...
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Graphical depiction of one photon
If a photon has a wavelength and a frequency and we depict a graph with multiple hills and valleys like done in basically every explanation regarding photons and their wave/particle behavior, like in ...
2
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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 ...
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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
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Max Planck - what does 'per wavelength' mean?
Planck says
$$B_\nu(T)=\frac{2hc^2}{λ^5}\,\frac{1}{\mathrm{e}^{hc/λk_BT}-1}.$$
It's defined as energy emitted per unit volume per wavelength. I'm not sure if this includes per solid angle, but I ...
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Max Planck - what's the $B$?
Planck says
$$B_\nu(T)=\frac{2\nu^2}{c^2}\,\frac{h\nu}{\mathrm{e}^{h\nu/k_BT}-1}.$$
It is power emitted per unit area per unit angle per unit frequency. This is what I'm curious now.
Let's say we ...
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Difference between white and yellow light bulbs
Whats the difference between the white light bulbs and yellowish tinted light bulbs what makes the color yellowish? Do they both emit multiple wavelengths of all the colors or does one of them emit ...
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Finding mass of photon with de Broglie wavelength
The de Broglie wavelength equation is given by:
$$\lambda = \frac{h}{mv}$$
Even though this is used to find the wavelength of the matter (matter waves) , I was curious to find the mass of photon ...
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De Broglie wavelength of a photon
The de Broglie wavelength of a photon and the wavelength of its corresponding electromagnetic wave are numerically the same. Is this just a coincidence and the two waves are different or is the de ...
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Is a photon a single wavelength of monochromatic light?
I am confused about all these different interpretations of what a photon is?
I am looking for a simple and practical interpretation.
Therefore, I am asking herein if a single photon corresponds to a ...
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Can a photon have a radius?
I have seen someone answering this question by saying that a photon can has a radius as big as its wavelength, is that true? If it is true Does this then mean a photon of the radio radiation, for ...
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Is the distance between photons the wavelength of light? [closed]
I have a question that may be naive for you, but I would like you to answer it
The question
Is the distance between photons the wavelength of light?
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How did Einstein calculate the wavelength of photons?
Einstein's Photoelectric equation states that
$$h\nu = h\nu_0 + \frac{1}{2}mv^2$$
which uses frequency. But if he assumed light to be a stream of particles how would he calculate it's frequency? de ...
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