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Q2. The reason light is slowed down in the atmosphere is the same as to why radio waves slow too (I think). Both slow down yes, but at the same speed, not sure they would.
What causes a photon to slow down? Isn't this caused by an oscillating EM field in the photon interacting with the electrons in the atmosphere?
If I am correct above, and since light has higher energy photons to that of radio waves - they cannot be traveling at the same speed with consistent torque being applies to both.
Wouldn't like to answer that with the clock ticking! Head hurts. Can a physicist please step in?
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