The speed of light in a vacuum referred to simply as c is 299792458 metres per second. 127 and m 0 is the parameter that international Standards Organizations call the magnetic constant commonly called vacuum permeability or the permeability of free spaceSince m 0 has an approximate value 4p 10 7 Hm and c has the defined value. The speed of light in vacuum commonly denoted c is a universal physical constant important in many areas of physics.
The numerical value of c is c299792458 ms The physical meaning of this value is the speed of the propagating electromagnetic wave.
The numerical value of c is c299792458 ms The physical meaning of this value is the speed of the propagating electromagnetic wave. It is equal to 299 792 458 m s 1 value adopted by the IAU in 1976. Pixabay user Melmak When scientists talk about the speed of light. But in an experiment in Princeton NJ physicists sent a.