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What else can I help you with?
What happens to the speed of light waves when they travel through a medium?
The speed of light in a material medium is slower than the speed of light in a vacuum. This is a consequence of the electromagnetic wave interacting with the atoms and molecules in the medium, a process merits its own question.Of course, this assumes the medium is transparent for the wavelength of light travelling through it.Light waves slow down when they pass through a medium, eg glass or water
What type of wave travels fastest?
Electromagnetic radiation travels at a speed that's not only faster than any other wave,but is also the "universal speed limit", faster than which nothing can move.
Which property of a wave changes as the wave travels across the boundary between two different media?
it is speed
Does time slow down in space?
Time is relative to the speed of the observer and the faster an observer travels at the slower time will appear for him. So time slows down with speed not with distance.
How fast do light waves travel?
Light in a vacuum is represented by a constant known as c=2.99792458 m/s. Otherwise I can recommend two books called general relativity and special relativity both written by our very own Albert Einstein.
