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Hi, I am just reading about how Plancks use of light quanta for convenience, and then Einsteins proof that they existed gave birth to quantum mechanics.
It's interesting to me how the discrete packets carry different amounts of energy based on frequency, but it left me gasping for more. Are photons all the same physical size, and therefore carry the energy within each peak?
Do they differ in size and each carry the same number of waves, and the energy is in the frequency itself?
Is there a minimum and maximum frequency within the EM spectrum?
The distance between these holes is further apart than the electron size we measured at our detector, yet somehow the electron manages to pass through both holes at once on its way to our detector.
Even odder, we can somehow spread an electron over macroscopic distances even though our detector measurement shows it to be microscopic in size!
This is part of the weirdness of quantum mechanics. In our large scale world, things tend to behave EITHER like a particle or like a wave. But on a tiny scale, things somehow behave like both!
As to photons, when they're traveling between points, we can't give them a size in a rigorous way. A single photon is technically infinite in size as its traveling.
It's sufficient for the layperson to know that physics doesn't deal with absolute reality--it deals with predicting the results of measurements. So far as that goes, the only way to predict the outcome of firing an electron at two slits (provided we don't know which slit it went through) is to use mathematics that states some entity is passing through both slits at once and that when it arrives at the detector, it is detected at (to our most precise measurements) a single point.