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Results tagged with light
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user 24184
Questions regarding electromagnetic radiation in the visible spectrum.
32
votes
If light has no mass, why is it affected by gravity?
Light waves/particles always travel in a straight line at a constant velocity ($c$). … In all frames of reference, though, the speed of light remains constant. There's more info on this on the wiki.
Note: The question originally referred specifically to black holes. …
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