Physical Science 20
THE PHYSICS OF MUSIC: CLOSED AIR COLUMN
1. Write the formula that relates “L” and λ for each of the following instruments with one
open end:
a. The fundamental?
b. The 5th overtone?
c. The 27th overtone?
2. What length of tube will it take to produce a 55.0 cm wave as its:
a. Fundamental?
b. 7th overtone?
c. 18th overtone?
3. What is the longest wave that a 75.0 cm long saxophone can produce?
4. A recorder is 23.9 cm long. If the speed of sound is 345 m/s, what frequency will its 3 rd
overtone be?
5. A trumpet can produce an 885 Hz sound as its 4th overtone when the
speed of sound is 332 m/s. How long is the trumpet?
6. What is the lowest pitched sound that an oboe 54.5 cm long can produce if
the speed of sound is 342 m/s?
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