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Light always travels at the speed of light, although

that's a different number in different substances.

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11y ago
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1w ago

Light always travels at the speed of light in a vacuum, regardless of its frequency or wavelength.

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Q: When is the only time that light travels at the speed of light?
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Related questions

What is the only time that light waves travel at the speed of light?

Light always travels at the speed of light. The only time that's 299,792,458 meters per second ( " c " ) is when it's traveling in vacuum.


Does the speed of light have air in it?

No, the speed of light is a fundamental constant in physics and does not contain air or any other material substance within it. It is the speed at which light travels in a vacuum.


When is the only time that the light waves travel at the speed of light?

Light waves always travel at the speed of light in a vacuum, which is approximately 186,282 miles per second. The speed of light in a vacuum is a constant, regardless of the observer's perspective.


What causes light to accelerate?

Light does not accelerate. In a vacuum, light always travels at a constant speed of approximately 299,792 kilometers per second, known as the speed of light. It only changes speed when it passes through different mediums.


How has the idea of light years changed over time?

this can never change, light travels at a constant speed, a light year is the distance light travels in one year.


How fast does light travel in a micro second?

The speed of light is not dependent on how long time it travels.


Does light slow down when it travels through matter?

Yes, light does slow down when it travels through matter, as it interacts with atoms and molecules in the material. This slowing down of light is responsible for effects like refraction and dispersion.


What is the only time light waves travel at the speed of light?

Light waves always travel at the speed of light, which is approximately 299,792 kilometers per second in a vacuum. It is a fundamental constant of nature and does not change based on the observer's frame of reference.


When is the only time light wavesd travels at the speed of light miels per second?

Light waves always travel at the speed of light ... whatever it may be inside the material they're traveling through. They only travel at 300,000 kilometers (186,282 miles) per second in vacuum.


What is the speed it takes your light bulb to transmit at the speed of light?

By definition, light travels at the speed of light. About 300,000 kps


If time and distance approach zero relative to an observer as one approaches light speed and light travels at light speed wouldn't an observer see light going faster than it is?

time dilates, space contracts, speed of light holds constant.


Why is light measured in distance and not in time?

-- The distance that light travels in some amount of time is expressed in units of distance. -- The time that it takes light to cover some amount of distance is expressed in units of time. -- The speed of light is expressed in units of speed . . . distance/time