Given open and closed pipes of the same length, which would have the lowest natural frequency:...
Given open and closed pipes of the same length, which would have the lowest natural frequency:
A). The closed pipe
B). The open pipe
C). They both would have the same low frequency
Homework Answers
Expressions for natural frequencies of open pipe and closed pipes are
fn = nv/2L for an open pipe,
and
fn = (2n - 1)v/4L for a closed pipe
For lowest frequency n =1,
open pipe frequency, f1 = v/2L and closed pipe frequency, f1 = v/4L .
As denominator in closed pipe equation is greater, it has lowest natural frequency.
Thus, the correct option is ( A )
Add Answer to:
Given open and closed pipes of the same length, which would have the lowest natural frequency:...
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You have pipes of various lengths and openings and want to select 2 pipes (1 open-open and 1 open-closed) so your 440 Hz tuning fork will vibrate both perfectly at their first resonant points. The speed of sound in air is 343 m/s. a) What are the lengths of each of these two pipes? b) Draw a picture of the wave in both pipes and clearly indicate the nodes and antinodes of the wave inside both pipes. c) How much...
You have pipes of various lengths and openings and want to select 2 pipes (1 open-open and 1 open-closed) so your 440 Hz tuning fork will vibrate both perfectly at their first resonant points. The speed of sound in air is 343 m/s. a) What are the lengths of each of these two pipes? b) Draw a picture of the wave in both pipes and clearly indicate the nodes and antinodes of the wave inside both pipes. 1 c) How...
The diagram below shows two pipes of the same length. Pipe A is
open at both ends and pipe B is closed at one end.
A. On the diagrams above, draw lines to represent the waveforms
of the fifth harmonic resonant note for each pipe.
B. On each diagram, label the position of the nodes with the
letter N and the position of the antinodes with the letter A
ITT LUU UU.) VIIY 15 le fundamental frequency of the closed tube lower than it was for the open tube? 2. Increase the frequency and try to find any other harmonics. Why does a tube open at both ends play all the harmonics, but a tube with one end closed only plays the odd harmonics (1, 3, 5, etc.). What is the relationship between the tube length and the wavelength for the third harmonic of a closed tube? QUESTIONS 1....
Two pipes of equal length are each open at one end. Each has a fundamental frequency of 460 Hz at 280 K. In one pipe the air temperature is increased to 285 K. If the two pipes are sounded together, what beat frequency results? Need Help? -/2 points SerCP11 14.A.P.077. My Notes Ask Your Teacher On a workday, the average decibel level of a busy street is 66 dB, with 120 cars passing given point every minute. If the number...
Two open-open pipes have lengths that differ by 1.00%. When both are struck, emitting sound at the fundamental frequency, a beat frequency 2.50 Hz can be heard. What is the approximate length of each pipe? O 1.02 meters 0 0.68 meters O 0.34 meters 1.36 meters
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