The B-string of a guitar is made of steel (density 7800 kg/m^3), is 63.5 cm long, and has diameter 0.406mm. The fundamental frequency is f = 247.0 Hz. Find the string tension.
F/A = YΔL/L
The Attempt at a Solution
So I know we have the A, the Young's modulus, and the length. But there is no change in length! So there should be no tension/stress. I have no clue where to start, need some hints!
Also how does frequency have anything to do with the tension? Is it just there to throw you off?