1. The problem statement, all variables and given/known data Work out the length of a guitar string, and where the frets will be placed from nut to bridge given the starting frequency. Frequency = 82.4Hz (E) 2. Relevant equations 12√2 between each fret v = fλ v = √(T/u) u = m/L L = (1/2)*λ 3. The attempt at a solution I'm actually not too sure how to go about this question because I only have the frequency. I guess I could approximate a tension and density by research but other than that I'm quite stumped. Thanks in advance.