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dense
Yes. Electromagnetic waves, like light, can travel through a vacuum, they need no medium in order to be transmitted. Unlike sound waves, which are compression waves what rely on matter in order to be transmitted.
Electromagnetic waves do not require a medium, so they can transfer through a vacuum, or empty space.
Yes, mechanical waves require a medium to travel through. This medium can be a solid, liquid, or gas. Without a medium, such as in empty space, mechanical waves cannot propagate.
It will bend (refract) because light slows down a bit when it passes from a less dense to a more dense environment.
Dense
dense
dense
Yes. Electromagnetic waves, like light, can travel through a vacuum, they need no medium in order to be transmitted. Unlike sound waves, which are compression waves what rely on matter in order to be transmitted.
They are very dense.
In a way, they don't. There is always a medium; though for some waves, this medium can be empty space.
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An electromagnetic wave (this includes light) does not require a physical medium - it can travel through empty space.An electromagnetic wave (this includes light) does not require a physical medium - it can travel through empty space.An electromagnetic wave (this includes light) does not require a physical medium - it can travel through empty space.An electromagnetic wave (this includes light) does not require a physical medium - it can travel through empty space.
It isn't. There's still plenty of empty space available.
That means that light travels slower in the medium than in empty space.
Electromagnetic.
Light waves can travel through empty space. You might say that the empty space is the medium in this case.