All Questions
13
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Integrating Planck's relation
By Planck relation, we know that an energy of a single photon is $E = hf$.
If we are given EM-waves with interval of frequency $f_1$ to $f_2$, does integrating from
$\int_{f1}^{f2} Edf$ $=\int_{f1}^{...
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2
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519
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Frequency of EM waves in classical and quantum physics
In classical physics, when a charged particle oscillates, it emits an electromagnetic wave, and the frequency of the wave depends on the frequency with which the particle oscillates.
But in quantum ...
-4
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3
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205
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Planck's quantum theory
Recently came across Planck's theory, $E = h\nu$.
It means that at any frequency, there is given energy. But I also saw that, $E$ can be $0, h\nu, 2h\nu, 3h\nu,...$.
How is it possible that energy can ...
- 31
0
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1
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If space is continuous, then frequency and photon energy too? [duplicate]
Photon is the quantum of light, i.e., energy comes in discrete level. But EM energy is a function of frequency ($E=hf$). And if frequency has a continuous spectrum, then energy level is continuous, ...
- 137
3
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3
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378
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If frequency is continuous shouldn’t energy be non-quantised?
If $E=hf$ and the frequency of electromagnetic waves is continuous (i.e. you can have frequencies of $1.5\ Hz$ or $0.3\ Hz$ for example) then surely energy isn’t discrete or quantized into because one ...
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2
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2
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How does the Planck–Einstein relation imply discreteness?
The relation is often stated as $E = h\nu$
Simple enough. But the frequency $\nu$ doesn't have to be a natural number or even an integer, correct? It can be any rational number or even any real ...
5
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1
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763
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Black body radiation curve
See images about black-body radiation.
How does Planck's quantum theory explain the low intensity of radiation for high frequencies?
I.e why does the black body curve become lower at the high ...
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4
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Can the equation $E = h\nu$ be used not only for light, but for radio waves? (Since they are all part of the electromagnetic spectrum)
Can the equation $E = h\nu$ (or $E = hf$) be used to find the energy of the particles from the electromagnetic spectrum? I mean, for example light is part of the EM, a radio wave is also part of the ...
user186161
2
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0
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Physical source of photon frequency [duplicate]
In QM it's taught that the frequency of a photon emitted when an electron drops from a higher-energy state to a lower-energy state is $\Delta E/h$. In E&M, it's taught that the source of an ...
- 24.8k
-2
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1
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One wave one photon?
Please give me your thoughts regarding the statement and questions that follow.
A light wave is a probability wave depicting where a photon is likely to be within the wave. Once the photon is found ...
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3
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How does light oscillate?
Why do we say that electromagnetic wave is oscillating? Or does light propagate really in a wavy form like this image?
What is making the photons oscillate and how is it oscillating is it oscillating ...
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3
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7
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3k
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Do photons with a frequency of less than 1 Hz exist?
A photon with a frequency of less than 1 Hz would have an energy below
$$
E = h\nu < 6.626×10^{−34} \;\rm J
$$
which would be less than the value of Planck's constant. Do photons with such a low ...
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1
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1
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715
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Super High Frequency Electromagnetic Radiation - String Theory
I am a serious high school student with one year of physics class experience, so please point out if there are any flaws in my question or reasoning. Thanks!
Gamma ray radiation possesses a ...
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