Answer:
The expression of speed of light can be written as "c".
Step-by-step explanation:
The speed of light is denoted by c. It is originated from the Latin word celeritas which means "speed". Its value is 3×10⁸ m/s.
It is related to the frequency and wavelength as follow,
Speed of light = wavelength × frequency
c = λ × f
λ = c/f
This formula shows that both frequency ad wavelength are inversely related to each other.
Frequency is taken in Hz.
It is the number of oscillations, wave of light make in one second.
Wavelength is designated as "λ" and it is the measured in meter. It is the distance between the two crust of two trough.