How can photons have frequency without vibration?
38865
How can a Photon have a "frequency"?
81503
Do photons truly exist in a physical sense or are they just a useful concept like $i = \sqrt{-1}$?
10371
If photon energies are continuous and atomic energy levels are discrete, how can atoms absorb photons?
60149
Can photons be detected without being absorbed?
30745
Why can't photons have a mass?
13251
Does a photon in vacuum have a rest frame?
22118
If all motion is relative, how does light have a finite speed?
42765
Stimulated emission and No cloning theorem
41041
Does a photon instantaneously gain $c$ speed when emitted from an electron?
23865
Why do prisms work (why is refraction frequency dependent)?
158809
What is the status of massless photons traveling through a medium?
77731
'size' of a photon
27825
Bending of light - photon's inertia instead of mass
26670
Explain how (or if) a box full of photons would weigh more due to massless photons
131406
Can you split a photon?
64935
Using photons to explain electrostatic force
56610
Does a single white photon exist?