Why do we replace $c$ (speed of light) with $v$ in de Broglie's equation?
74065
Proof of de Broglie wavelength for electron
28488
I am confused about the idea that the speed of light is independent of the speed of the source of light
115572
Theoretical proof of the constant of speed of light $c$ in vacuum in all frames of references
18541
What does a de Broglie wave look like?
33110
The origin of the value of speed of light in vacuum
54857
The wave equation in general relativity, special relativity, and Cartesian coordinates
53455
Relativistic speed/energy relation. Is this correct?
86302
If light rays obey to the wave equation, why can they be thought as straight lines?
136184
Why we dont have "direct" velocity operator just as $p$? ( as use $p$ space not $v$? ) in quantum mechanics?
36380
Why not use the Lagrangian, instead of the Hamiltonian, in nonrelativistic QM?
108384
Special Relativity and $E = mc^2$
75580
Derivation of the speed of light using the integral forms of Maxwell's Equations
86901
Galilean covariance of the Schrodinger equation
119993
If quantum speed-up is due to the wave-like nature of quantum mechanics, why not just use regular waves?
149674
Kinetic energy of a photon and Schwarzschild radius
89837
Speed of light when accelerating
127383
Speed of light in general relativity