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Can light travel in a vacuum?

Updated: 4/28/2022
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12y ago

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Yes. Light waves are electromagnetic waves, which do not require a medium to travel through.

Mechanical waves (such as sound) do require a medium to travel through, so sound waves cannot travel through a vacuum.

Space is a vacuum. The light from the stars (including our own sun) travel across a great distance in a vacuum to get to us.

The accepted speed of light is its speed in a vacuum, which is 299,792,458 m/s.

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12y ago
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12y ago

yes; example sun light and laser light

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Q: Can light travel in a vacuum?
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Related questions

Why doesn't light travel through a vacuum?

Light does travel through a vacuum.


Is vacuum a medium of light?

Light can travel through vacuum, but it is not a medium.


What can light travel in?

Light can travel in a vacuum or in any transparent material


The speed of light indicates how fast light can travel in a vacuum?

Yes ... in a vacuum.


Can gases travel through a vacuum?

No. Only light waves can travel through a vacuum.


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

No, light is at its fastest in a vacuum.


What type of light waves can travel through a vacuum?

Light spectrum is part of the electromagnetic radiation spectrum. Electromagnetic waves travel better and faster (light speed in vacuum) in vacuum.


Does light travel trough a vacuum?

Yes. Light is a self-propagating wave that does not need a medium to flow. Thus, light has the ability to travel through a vacuum.


Does light travel faster in a vacuum?

Yes.


What can infrared light travel across?

It can travel across the vacuum of space.


Is light an example of mechanical wave?

No. Light is an example of an electromagnetic wave, which can travel through a vacuum. Mechanical waves must travel through a medium, and cannot travel through a vacuum.


Can light and sound travel through vacuum?

Light can. Sound can't.