If photons are massless, how can they be redirected? How do they interact with the properties of a mirror for an example?
In: Physics
Photons are massless, but they still interact with the universe.
A mirror, for example, has a thin conducting layer behind the glass (was once silver, but I”m sure it’s something else now). The electrons in the conducting layer kind of absorb some of those photons and then reflect them outward.
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