Oscillations and Waves > Instruments > Plates, Bars and Solids > Bars DCS# 

BRASS CHIMES


APPARATUS
brass pipes/chimes 202-06-C
wrench 202-02-F1
hammer or mallet 202-02-F2


DESCRIPTION
Shows that resonant frequencies for transverse waves are f1, 2.76f1, 5.41f1.  Tap in middle, you get mainly fundamental.  Tap near end with middle held, you get second mode which is about an octave and a 4th above fundamental.  Fundamental frequencies of 3 shorter tubes are about a major 3rd, a perfect 5th, and double octave above longer tube's pitch - illustrating 1/L2 rule.
-REW