1. The problem statement, all variables and given/known data A violin string with a mass of 0.35g is 33 cm long. The frequency of a wave supported by the string is 196 Hz. What is the speed of the wave? 2. Relevant equations Ln = n/2 *lambda v = f*lambda 3. The attempt at a solution 1. Solve for wave length L1 = 1/2 *lambda 0.33 = 1/2 * lambda 0.33 *2 = lambda 0.66 = lambda 2. Solve for speed of wave v = f * lambda v = 196 * 0.66 v = 129.36 m/s I just assumed you have to use first harmonic and got the right answer, but why do we have to use first harmonic? or is there another way to do it?