There are only two formulae you need to remember when it comes to waves:
f = 1/T
Where
- f is the frequency of the wave in Hertz (Hz) and
- T is the time period of the wave in seconds (s). T is the time taken for the wave to make one complete oscillation.
v = f x λ
Where
- v is the speed of the wave in metres per second (m s-1) and
- λ is the wavelength of the wave in metres (m).