Why is the speed of light considered as a fundamental constant if its speed changes with medium resulting in refraction?
8367
What do physicists mean when they say "speed of light"?
120679
Rømer's determination of the speed of light
19850
Why is the speed of light defined as 299792458 m/s?
820
Photons are faster than the speed of light because they travel in transversal waves?
13563
What really causes light/photons to appear slower in media?
45167
Deriving the speed of the propagation of a change in the Electromagnetic Field from Maxwell's Equations
100807
Are the Maxwell equations a correct description of the wave character of photons?
11053
Planck's Law in terms of wavelength
56005
Speed of light travel
142906
How can a particle in a medium ever travel faster than light?
10025
Why does wavelength change as light enters a different medium?
16748
What happens if light/particles exceeded the speed of light for a particular medium?
115572
Theoretical proof of the constant of speed of light $c$ in vacuum in all frames of references
20412
Frequency of a photon
47568
Is it experimentally proven that photons travel at speed $c$ in vacuum?
22118
If all motion is relative, how does light have a finite speed?
7618
What is the speed of light relative to?