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How fast is light?

299, 792, 458 meters per second (the speed of light)

299, 792, 458 meters per second (the speed of light)

299, 792, 458 meters per second (the speed of light) is the top speed of light.
The speed of light, the value calculated for the time taken for light to travel from a source emitting energy within the visible spectra to a hypothetical observer
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What is the fastest speed achieved by the object light (electromagnetic radiation of a wavelength that is visible to the human eye (about 400–700 nm))?
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hoe does light travle?
This answer was supplied by one of our users. View details.
Posted at 13:00 on September 23, 2010.
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