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

Rabinow23
Can someone correct me if I 'm wrong,just interested thank-you

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