what is the frequency

Question

Standing waves are produced in a stretched rope. If the distance between successive nodes is 0.04m, what is the wavelength? If the wave travels with a speed of 84m/s, what is the frequency? 

Answer 1

The neighboring node-to-node distance is half a wavelength. 

 

The wave speed related to the wavelength and the frequency by v = λf.

 

Good luck!