Science & Nature · 1
What is the speed of light in vacuum, approximately?
Answer
186,000 miles per second
The speed of light is a fundamental constant in physics, denoted as 'c'. It's approximately 299,792 kilometers per second or 186,000 miles per second.
💡 Did you know?
Light from the Sun takes about 8 minutes and 20 seconds to reach Earth, meaning we always see the Sun as it was 8+ minutes ago.
Other options people guess
- 286,000 miles per second
- 386,000 miles per second
- 86,000 miles per second
Topics
- Physics
- Space
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