Δf 0.00 Hz
WAVES & SOUND · LAB 12
Standing waves on a string
Drive a string through its natural frequencies and reveal the stationary nodes, moving antinodes and harmonic patterns created by reflection.
SIMULATIONRUNNINGMODEn = 1TIME0.00 s
Click the string to place or move the probe
v = √(T/μ)
T = 0.063 s
fixed—fixed
PROBE x = 0.25 m0.000
WHAT TO NOTICE
Only certain patterns fit
Reflections make two identical waves travel in opposite directions. Their superposition leaves nodes stationary while antinodes swing through the largest displacement. Change tension or density and the resonant frequencies move.
FIXED—FIXEDL = nλ/2