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the velocity/speed of light is fastest in a vacuum, slower in air , slower yet in liquids and slowest in solids. the reason for this is the density of the medium. density is the amount of mass contained in a unit volume of space. solids have alot more mass in the same unit volume than any other medium. this makes it difficult for light waves to penetrate through it and alot of light if not all the light is reflected. liqiuds are generally less dence than solids thus light can easily travel through it. gas particles are spaced farthest apart thus its very easy for light to travel through it. light travels fastest in vacuum because in a vacuum there are no particles to deflect, or reflect the light waves.

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Does light travel fastest through solids liquids gases or empty spaces?

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Does empty space make sound travel fastest?

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Yes, solids can fill a glass container, but their ability to do so depends on the shape and size of the solids. When poured or placed into the container, solids will occupy the space available, adjusting to the container's shape. However, unlike liquids, solids maintain their own shape and may leave empty spaces if they are not uniformly shaped or if they do not fit tightly together.


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