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azureth
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what is the velocity of photon in media, c or c/n ?
azureth said:what is the velocity of photon in media, c or c/n ?
andrien said:photons always move with speed c.the refractive index part just accounts for a phase shift for light.it does not mean that photon move at speed c/n.for further reference you can see feynman lectures vol.1('the origin of refractive index').
andrien said:photons always move with speed c.the refractive index part just accounts for a phase shift for light.it does not mean that photon move at speed c/n.for further reference you can see feynman lectures vol.1('the origin of refractive index').
Drakkith said:I'm not quite sure what you are saying, but I was near certain that light does in fact move slower through a medium such as glass, with V=c/n.
The velocity of a photon in a vacuum is constant and is designated by the symbol c, which is approximately 299,792,458 meters per second.
The velocity of a photon can change when it travels through different media. In a medium such as air or water, the photon's velocity is slightly slower than in a vacuum. This is due to the interactions between the photon and the particles in the medium.
No, the velocity of a photon does not change based on its wavelength. All photons, regardless of their wavelength, travel at the same speed in a vacuum. However, their speed may vary slightly in different media.
Yes, the velocity of a photon can be measured accurately using a variety of techniques. One common method is the use of interferometers, which can measure the speed of light in a vacuum to within a few meters per second.
Yes, the velocity of a photon can be affected by the presence of gravity. According to Einstein's theory of general relativity, the path of a photon can be curved by the gravitational pull of massive objects. This can result in a change in the photon's velocity as it travels through space.