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The speed of light is about 300,000 miles per second in a vacuum. In air, it is about 90 kilometers per second slower. Group velocity experiments back it up.

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12y ago
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14y ago

Light travels 3E8m/s x40inches/m = 12 Billion inches/second.

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15y ago

the speed of light = 670 616 629 mph

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12y ago

The speed of light in vacuum is 299,792,458 meters (186,282 miles) per second.

"Speed per inch" is not a unit of anything, and it has no physical meaning.

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Q: Light travels at what speed per inch?
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Related questions

How does light travel witch is faster light or sound?

Light is much faster then the speed of sound. Sound travels at a speed of about 768 Miles per hour, when light travels at a speed of 186,282 miles per SECOND.


What is the speed in which light travels?

In vacuum it travels at 299,792,458 metres per second.


What is speed does light travel?

Light travels at a speed of 186,000 miles per second, in a vacuum.


How many miles per hour light travels?

Light travels at a speed of 186,000 miles per second or 669,600,000 miles per hour. Light travels somewhat slower when it is "in" something, such as glass or water.


The speed of light measure?

Light travels at about 186,000 miles per second


What is the speed which light travels?

186,282 miles per second


What travels at 300 000 km per second?

That is the speed of light.That is the speed of light.That is the speed of light.That is the speed of light.


What speed does electrical current travels?

At the speed of light- about 186,000 miles per second.


Which is faster speed or light?

Please be more specific.


What is the distance light travels in 1 minute called?

17987547480m/min -> speed of light per minute 299792458m/s -> speed of light per sec or light speed


The speed of light in min?

The speed of light is 300,000 kilometers per second. If you multiply that by 60, you have the speed in kilometers per minute.


Light travels at a rate of?

299,792,458 meters per second in vacuum