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Light is considered a self-propagating wave. So it does not need a medium, which is why it reaches the earth from the sun. The mediums which dont absorb the light (and therefore allow light to travel through it) depend on the wave length of light. For example a gamma ray (has a very short wavelength) can travel through metal and takes a block of lead to absorb it.
Light waves travel at approx 300,000 kilometres per second, sound at approx 0.343 kilometres/second.Light waves can travel in vacuum or through some media (there is no such word as mediums!). Sound waves cannot travel through vacuum: they needs a physical medium.
This depends a lot on the type of waves you're talking about. Sound waves, for example, can travel through water, solid, and air mediums, but not through a vacuum. Electromagnetic waves, however, can travel in a vacuum.
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Light is considered a self-propagating wave. So it does not need a medium, which is why it reaches the earth from the sun. The mediums which dont absorb the light (and therefore allow light to travel through it) depend on the wave length of light. For example a gamma ray (has a very short wavelength) can travel through metal and takes a block of lead to absorb it.
Light waves can travel through empty space. You might say that the empty space is the medium in this case.
Light waves travel at approx 300,000 kilometres per second, sound at approx 0.343 kilometres/second.Light waves can travel in vacuum or through some media (there is no such word as mediums!). Sound waves cannot travel through vacuum: they needs a physical medium.
Along a geodesic curve.
In a vacuum.
Not all waves require mediums to propagate.Sound waves can travel through solid, liquid and gaseous mediums, while, electromagnetic waves do not require any medium to travel through.
This depends a lot on the type of waves you're talking about. Sound waves, for example, can travel through water, solid, and air mediums, but not through a vacuum. Electromagnetic waves, however, can travel in a vacuum.
Metals such as iron
air water stell
No. Sound travels slowly like a turtle, while light zips along like a rabbit.
Yes, sound can travel through most mediums including solids and liquids. However, it cannot travel through a vacuum.