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Results tagged with speed-of-light
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user 47582
The speed of light is a fundamental universal constant that marks the maximum speed at which energy and information can propagate. Its value is $299792458\frac{\mathrm{m}}{\mathrm{s}}$.
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votes
Would light from the Sun necessarily reach Earth after 8 minutes if the Sun was switched off?
The light emitted before the shut off of the sun will definitely reach the earth and it will take 8 minutes. Which means, you will not know for 8 minutes that the sun had stopped producing light.
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