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Longest Wavelengths

  • Thread starter spokorne
  • Start date
  • #1
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Homework Statement



What are the three longest wavelengths for standing sound waves in a 128-cm-long tube that is (a) open at both ends and (b) open at one end, closed at the other?

Homework Equations


W=V/F


The Attempt at a Solution



128 cm because nothing bigger could fit in the tube
 

Answers and Replies

  • #2
rl.bhat
Homework Helper
4,433
5
In the fundamental mode of vibration, the wavelength in open pipe is λ/2 and in closed pipe λ/4.
 

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