Question

how did einstein know that the speed of light is constant

Answer 1

hello user...

Einstein was first scientist who gave theory on speed of light...

When he combined the principle of relativity with the constant speed of light, it became clear to Einstein that the speed of light was also independent of the speed of the observer (as well as of the speed of the source of the light), and that everyone in the universe, no matter how fast they were moving, would always ...

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Answer 2

Answer:

Explanation:

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