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Is light still light when it slows down?
Light, which travels as the speed of light, must slow down at times. Yes, it shoots through a frictionless universe, but gravity affects it it, black hole theory and all. And if light does slow down, would it still illuminate things? Would it still be light? Would it gather in bright little spots, hovering close to high gravity areas? Being a wave and a particle, is it attracted to itself?
Enlighten me.
Light only slows when it enters a medium eg glass. Its velocity and wavelength change but its frequency and hence colour remains constant.
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