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Light's apparent speed is fastest definitely in a vacuum and slower in water or glass. Light in air behaves more like in a vacuum than in water or glass.

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Q: Does light travel fastest in space in air in water or through glass?
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Related questions

Can both light and sound travel through glass?

Both light and sound can indeed travel through glass. These are substances in which light and sound often travel through.

What happens to the speed of the light as it travels from the air through the glass and then through the water?

The light refracts due to the change in speed. The change in speed occurs because the light is travelling through a denser medium. So it will travel fastest through the air and slowest through the glass

What materials can light travel through faster than it travels through air?

Light travels fastest through space which has no air. Space is a vacuum which is the fastest way for light to travel.

What does light travel faster through?

Light travels fastest through vacuum.

Does light travel fastest in glass or water or vegetable oil?

GlassVegtable oilWater

What is a material through which light waves can travel?

Light can travel through transparent and translucent glass.

A material that light can travel through is?


What does Light waves travel the fastest through?

outer space

What is a solid that lets light travel through?


What color water does light travel through fastest?

According to the light spectrum, water should travel through a more violet coloured water the fastest. The speed of light through a medium is not governed by its wavelength, so colour is not a factor.

Does light travel at its slowest speed when passing through a vacuum?

No, light is at its fastest in a vacuum.

Does light have a medium to travel through?

No, apart from "spacetime". But it CAN travel through a medium such as air or glass.