16.5 CHAPTER 16. THE PHYSICS OF MUSIC
- The wavelength of astanding wave in a pipewith one end open canbe calculated using
 λn= 2 n^4 L− 1.
- Resonance takes place when a system is made to vibrate at its naturalfrequency as a result of
 vibrations received fromanother source of the same frequency.
Extension: Waveforms
Below are some examples of the waveforms produced by a flute, clarinet and saxophone for
different frequencies (i.e. notes):Flute waveformClarinet waveformSaxophone waveform
C 4 , 256 HzE�, 156 HzB 4 , 247 Hz