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Find the length of string and speed of wave in string

  • Thread starter myoplex11
  • Start date
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1. Homework Statement
Find the length of string and speed of wave in string if frequency of given wave is 850 hz and the wavelength is 0.173m? The string is in a tube that is closed at both ends.




2. Homework Equations
v=(T/(m/L)^.5

3. The Attempt at a Solution

I found the speed using v=frequency*wavelength.
How do i find the length of the string?
i dont know the mass or the tension
 

Answers and Replies

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Homework Helper
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3. The Attempt at a Solution

I found the speed using v=frequency*wavelength.
How do i find the length of the string?
i dont know the mass or the tension
This is a standing wave. Have you read about that?

Assume that the frequency given is that of the fundamental. What is the relationship between the wavelength and the length? In this case, the ends of the string are both nodes.
 

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