How much time does it take a beam of light to travel 2.9 km through space? (c = 3.0 × 10⁸ m/s) A)9.7 s B)9.7 ms C)9.7 μs D)9.7 ns E)9.7 ps

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Quizplus · Accepted Answer

The speed of light (c) is 3.0 × 10^8 meters per second. To find the time (t) it takes for light to travel 2.9 km (or 2900 meters), use the formula t = distance/speed. Thus, t = 2900 m / (3.0 × 10^8 m/s) = 9.7 × 10^-6 seconds, which is 9.7 microseconds (μs).

How Much Time Does It Take a Beam of Light