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if the speed of light in a vacuum is 2.998*10^8 ms^-1

how long does it take for light to travel 1m, 1 cm, 1mm

 Jun 23, 2017
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Light travels at: 299,792,458 meters per second. So the reciprocal of that is true for 1 meter, i.e :

1 meter takes 1/299,792,458 of 1 second. And:

1 centimeter takes 1/29,979,245,800 of 1 second. And:

1 millimeter takes 1/299, 792, 458, 000 of 1 second

 Jun 23, 2017

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