Energy of a photon seems to be $mv^2$, NOT $0.5mv^2$ like it should be
28350
$\lambda=\frac{2h}{p}$ instead of $\lambda=\frac{h}{p}$?
26806
Virtual photons, what makes them virtual?
26670
Explain how (or if) a box full of photons would weigh more due to massless photons
18144
Does a nonzero Poynting vector mean that there is propagation of energy?
41041
Does a photon instantaneously gain $c$ speed when emitted from an electron?
82418
Why not drop $\hbar\omega/2$ from the quantum harmonic oscillator energy?
59176
Amplitude of an electromagnetic wave containing a single photon
152586
Does a photon have an amplitude?
72372
Maximum wavelength of a photon/electromagnetic radiation?
49047
Redshifted Photon Energy
106917
Do individual rays of light lose energy via the inverse square law?
152252
Tangent vector of photon
51802
What is the frequency of a photon?
19163
Why does the amount of energy transferred depend on distance rather than time?
45283
Why don't virtual particles violate conservation of mass/energy?
83770
Kinetic energy doesn't make sense
44239
Why the extra term $\frac{1}{2}(\partial_{\rho}A^{\rho})^2$ in the photon Lagrangian?