answersLogoWhite

0

The speed of light is 299 792 458 m s-1.

This is one of the very few exact physical constants; it is so by definition.

This enables the meter to be determined by it and the second.

User Avatar

Wiki User

14y ago

Still curious? Ask our experts.

Chat with our AI personalities

ReneRene
Change my mind. I dare you.
Chat with Rene
JudyJudy
Simplicity is my specialty.
Chat with Judy
CoachCoach
Success isn't just about winning—it's about vision, patience, and playing the long game.
Chat with Coach

Add your answer:

Earn +20 pts
Q: What is a exact speed of light in a vacuum?
Write your answer...
Submit
Still have questions?
magnify glass
imp