One wave, two graphs
Travelling to the right · the medium sets the speed v, the source sets the frequency f, so λ = v / f
Set the wave
The medium
Wavelength λ
Period T
Time t
Tracked particle y
Displacement against distance, at this instant
Displacement against time, for the tracked particle
The first graph is a snapshot of the whole medium. The second follows one particle through time.
- Same medium, higher f, shorter λ
- A different particle, the same wave later
- The same graphs for a longitudinal wave