Speed of light
Definition
The Speed of Light (or c) is the speed at which a photon (an "energy packet" of electromagnetic radiation) travels in a vacuum.
Values
The exact measurement for the speed of light is 299,792,458 meters per second, in the following values, the speed of light will use values based on the rounded 300,000,000 m/s.
Meters per second:
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle c = 3 \times 10^{8} \mathrm{m s^{-1}}}
Kilometers per second:
- Failed to parse (syntax error): {\displaystyle c = 3 \times 10^{5} \mathrm{km s^{-1}}}
Miles per second:
- Failed to parse (syntax error): {\displaystyle c = 1.9 \times 10^{5} \mathrm{mi s^{-1}}}
