Khan Academy Static

In these videos and articles you'll learn how standing waves are produced and how to determine the wavelength and frequency of the different harmonics of standing waves produced in an open open tube or an open closed tube.

10068_Standing_waves_in_closed_tubes.html

10069_Beat_frequency.html

10065_Constructive_and_Destructive_interference.html

10067_Standing_waves_in_open_tubes.html

10064_Wave_interference.html

10070_Derivation_of_beat_frequency_formula.html

10066_Standing_waves_on_strings.html