A standing wave is set up in a 200 cm string fixed at both ends. The string vibrates in 5 distinct segments when driven by a 120 Hz source. What is the wavelength? * 10 cm * 20 cm * 40 cm * 80 cm I need some help with this problem. I can't seem to find anything with an equation or any helpful information for this. I don't even know where to start with this. Any help would be much appreciated. Thanks.