You have Planck's law? Apologies this is level I so my ref was probably not very usefulaccdd said:Heat diffusion is caused by randomly moving particles. So there is a connection between the diffusion equation and the statistical motion of particles. Is there something similar for waves?
What kind of waves? One could discuss electromagnetic waves, or mechanical waves, and even with mechanical, we can discuss longitudinal waves, shear waves, surface waves, all of which depend on the media through which the waves propagate, the physcial (density) and mechanical (elastic) properties of that media. It's reflects the propagation or dispersion of momentum and energy from the excitation, a thermal pulse, a mechanical impulse, or a more sustained excitation, e.g., wind on the surface of water (or gas on a liquid). We could discuss acoustical sound waves, or ultrasonic waves, or shock waves, the latter being very complicated.accdd said:Heat diffusion is caused by randomly moving particles. So there is a connection between the diffusion equation and the statistical motion of particles. Is there something similar for waves?
accdd said:What I mean is: is it possible to do something like this: "" -min 3- with waves?
Electromagnetic waves are classical waves. There is nothing quantum about them until you want to quantize the EM field.anuttarasammyak said:In classical physics waves require motions of substances, e.g. motion pattern of soils in different places for earthquake, sea water molecules for tsunami, air gas molecules for sound waves. Can you imagine waves without these substances motions ? ( QM waves including EM waves have another foundation.)
A wave is a disturbance or oscillation that travels through a medium, transferring energy from one point to another without permanently displacing the medium itself. Examples of waves include sound waves, light waves, and water waves.
The underlying phenomenon of waves is the transfer of energy through a medium. This can occur through various mechanisms, such as compression and rarefaction for sound waves, or oscillations of electric and magnetic fields for electromagnetic waves.
Waves behave in a predictable manner, following mathematical equations that describe their amplitude, frequency, wavelength, and speed. They can reflect, refract, diffract, and interfere with each other, depending on the properties of the medium they are traveling through.
Waves and particles are two different ways of describing the behavior of matter and energy. In some cases, particles can exhibit wave-like behavior, known as wave-particle duality. This is observed in phenomena such as diffraction and interference of particles.
Waves are measured and studied using various tools and techniques, depending on the type of wave. For example, sound waves can be measured using a microphone and analyzed with a spectrum analyzer, while light waves can be measured using a spectrometer. Mathematical models and experiments are also used to study the properties and behavior of waves.