What is the time required for laser light to travel to the Moon and back? The radius of the Moon's orbit = 3.84 * 10⁸ m.

Name: What is the time required for laser light to travel to the Moon and back? The radius of the Moon's orbit = 3.84 * 10 8 m.
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Quizplus · Accepted Answer

The distance to the Moon and back is twice the radius of the Moon's orbit, so 2 * 3.84 * 10^8 m. The speed of light is approximately 3 * 10^8 m/s. Time = Distance/Speed = (2 * 3.84 * 10^8 m) / (3 * 10^8 m/s) = 2.56 s.

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