Question

Light travels at a constant, finite speed of__________​

Answer 1

Answer:

186,000 mi/sec.

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Answer 2

Answer:

3 × 10^8 m/sec

Explanation:

The common experience of turning on a light switch certainly shows that light travels very quickly. But careful experiments reveal that it travels at a finite speed. This speed, which we call "c," is measured to be 300,000,000 meters per second.

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