The graph below represents a standing wave on a string with fixed ends. The string is 3.70 long. http://capa6.phy.ohiou.edu/cgi-bin/plot.png?

The graph below represents a standing wave on a string with fixed ends. The string is 3.70 long.

http://capa6.phy.ohiou.edu/cgi-bin/plot.png?file=bd689814_ohiou_1460485015_10894796_plot.data

Which harmonic is represented in the picture?

What is wavelength of this harmonic?