C. Standing Wave
(4 points each)
A standing wave is set up on a 3.0 m string as shown. The wave speed v = 420 m/s
1. What is the wavelength \(\lambda\) of this standing wave?
2. What is the frequency \(f\) of this standing wave?
3. For the mode in the picture, what is the value of n, the number we use to label
different harmonics?
4. What is the fundamental frequency \(f_1\) of the string?
5. If the tension in the string is doubled, and we once again set up the wave in the
picture (same L and \(\lambda\)), what would be the frequency of the new wave?