In Reply to: RE: The Double-Slit experiment posted by tunenut on October 8, 2015 at 15:54:37:
The photoelectric effect has to do with the emission of electrons from a metal surface due to application of light to the surface. Quantum dots and laser emit photons due to the stimulation of electrons by external light or other energy. In the case of the quantum dot the (artificial) atoms actually do not contain nuclei only an empty hole. It is because the quantum dot is nanoscale on the order of the Bohr radius or smaller that the emitted light is wave onlly.
In the case of the audio signal as an electromagnetic wave, like any electromagnetic wave, the wave comprises photons, just not photons in the visible light spectrum. Now are they particles AND waves? You decide.Nice chatting with you.
Edits: 10/09/15
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- RE: The Double-Slit experiment - geoffkait 05:35:15 10/09/15 (0)