# What is the speed of light?

#### Rabinow23

Problem Statement: I know that speed of light is 3000km per second
Relevant Equations: Is it true?

Can someone correct me if I 'm wrong,just interested thank-you

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#### Rabinow23

Can someone correct me if I 'm wrong,just interested thank-you

#### Gaussian97

Well, it's 299 792 458$\text{ms}^{-1}$, or, equivalently 299 792,458$\text{kms}^{-1}$.

#### haruspex

Homework Helper
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Problem Statement: I know that speed of light is 3000km per second
Relevant Equations: Is it true?

Can someone correct me if I 'm wrong,just interested thank-you
You dropped a couple of zeroes. And this is the speed in a vacuum; it is slower in other media.

#### .Scott

Homework Helper
You are off by a factor of 100.
It is 299,792 Km/s

"What is the speed of light?"

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