1 a) A standing wave of frequency 5 hertz is set up on a string 2 meters long with nodes at both ends and in the center. Find the speed at which waves propagate on the string.

1. 2.5 m/s 2. 10 m/s 3. 0.4 m/s 4. 20 m/s 5. 5 m/s

b) ind the fundamental frequency of vibration of the string.

1. 7.5 Hz 2. 5 Hz 3. 1 Hz 4. 10 Hz 5. 2.5 Hz