Vibration of Strings
Transverse standing wave resonances produced along stretched flexible strings fixed at both ends.
Governing formula
f_n = (n / 2L) √(T / μ), v = √(T / μ)
SI unit
Hz (T in N, μ in kg/m)
In depth
Wave speed v depends on string tension T and linear mass density μ. Increasing tension increases pitch; increasing string thickness lowers pitch.
Examples in the real world
Tightening a guitar tuning peg to increase string tension and raise its musical pitch.