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9. Quantum Mechanics - 3! 1부

9. Quantum Mechanics / Speed of Light / 문제 4

문제 4

Calculate the time it takes for light from the moon to reach the Earth if their distance is 384,400 km.

A

1.28 s

B

0.780 s

C

3.84 s

D

1.15x10¹⁴ s