What is the speed of light in a vacuum, approximately?

Topic: Physics, Biology, Chemistry &amp; Astronomy
Subtopic: Human Anatomy, Earth Science, Solar System &amp; Basic Principles

A340 m/s

B150,000 km/s

C450,000 km/s

D300,000 km/s

Explanation

The speed of light in a vacuum is exactly 299,792,458 meters per second, commonly rounded to 300,000 km/s.

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