This shows that the length of the string is equal to 4( λ), so
This is the fourth-harmonic standing wave, with wavelength λ 4 (because the
expression above matches λn = 2L/n for n = 4). Since L = 12 m, the wavelength is
Questions 8-9
A piano tuner causes a piano string to vibrate. He then loosens the
string a little, decreasing its tension, without changing the length of
the string.
- What happens to the fundamental frequency?
- What happens to the fundamental wavelength?