How does spectroscopy work if the atom will immediately re-emit a photon of the same frequency?
53874
Why don't absorption and emission lines cancel out in our Sun?
51208
Is the wave function of a particle re-created after a measurement stops?
58463
How are photons "consumed"?
9370
How long does it take for an excited electron to return to ground state?
3958
How does a half-life work?
61729
If turning a perfectly monochromatic laser on for a finite time gives a frequency spread, where did the other frequency photons come from?
9645
What are the various physical mechanisms for energy transfer to the photon during blackbody emission?
32307
How can we interpret polarization and frequency when we are dealing with one single photon?
51802
What is the frequency of a photon?
141760
What's an atomic superstate/superposition, and how is it possible?
79571
How can the nucleus of an atom be in an excited state?
8111
EPR-type experiments and faster-than-light communication using interference effects as signaling mechanism
157497
During reflection does the emitted photon have same properties?
13122
Why doesn't the frequency of light change during refraction?
19918
What would the collision of two photons look like?
150813
Why does a photon colliding with an atomic nucleus cause pair production?
118021
How do you "store" a photon?