1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Standing waves on a string

  1. Apr 12, 2014 #1
    1. The problem statement, all variables and given/known data
    This is a prelab question which I hope for some confirmation I'm thinking right.
    A vibrating string is vibrating in the fundamental mode. The question is to plot a graph with a succession of applied tensions T on the x-axis and the resultant length L of the fundamental vibration mode on the y-axis


    2. Relevant equations

    Formula I have is L^2 = T/4μƒ^2

    3. The attempt at a solution
    Im thinking that all its asking is to plot a function like y=mx+c where 1/4μƒ^2 is the gradient?

    Something of the sort, then ill go on to calculate the linear mass density (μ), do some calculations plot L^2 against T and find this gradient and find the frequency....

    Oh and sid
     
  2. jcsd
  3. Apr 12, 2014 #2

    Simon Bridge

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    2016 Award

    You will notice from the formula that L(T) is not a straight line.
    To get a line you want to plot L^2 vs T ... you will expect the data to fall on a line like
    ##L^2 = mT + c## ... so you have that right. Use the data to find m and c, compare with the theory.

    You may want to anticipate the possibility (quite likely) that your data has a value of c that is non-zero.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?
Draft saved Draft deleted



Similar Discussions: Standing waves on a string
Loading...