A dramatic demonstration, called “singing rods,” involvesa long, slender aluminum rod held in the hand near therod’s midpoint. The rod is stroked with the other hand.With a little practice, the rod can be made to “sing,” oremit a clear, loud, ringing sound. For an 80-cm-long rod,(a) what is the fundamental frequency of the sound?(b) What is its wavelength in the rod, and (c) what is thetraveling wavelength of the sound in air at 20°C?
Interference of sound
Seiche
A seiche is an oscillating standing wave in a body of water. The term seiche pronounced saysh) can be understood by the sloshing of water back and forth in a swimming pool. The same phenomenon happens on a much larger scale in vast bodies of water including bays and lakes. A seizure can happen in any enclosed or semi-enclosed body of water.
A dramatic demonstration, called “singing rods,” involves
a long, slender aluminum rod held in the hand near the
rod’s midpoint. The rod is stroked with the other hand.
With a little practice, the rod can be made to “sing,” or
emit a clear, loud, ringing sound. For an 80-cm-long rod,
(a) what is the fundamental frequency of the sound?
(b) What is its wavelength in the rod, and (c) what is the
traveling wavelength of the sound in air at 20°C?
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
