* Permittivity of free space (ε₀): This constant describes the ability of a vacuum to store electric energy.
* Permeability of free space (μ₀): This constant describes the ability of a vacuum to support the formation of magnetic fields.
The speed of light in a vacuum, denoted by 'c', is given by the following equation:
c = 1 / √(ε₀μ₀)
Therefore, the speed of an electromagnetic wave in a vacuum is solely determined by these two fundamental constants and is independent of the frequency or wavelength of the wave.
