This site from Physics 2000 contains an interactive simulation of waves bouncing back and forth in a box. The user controls the wavelength, and the simulation shows the superposition of all the waves in the box. When the waves resonate, the large amplitude of the superposition is unmistakable, and the relationship between the wavelength of the waves and the size of the box is clear.
Physics 2000, & Goldman, M. (2006, August 25). Physics 2000: Resonance. Retrieved June 29, 2017, from http://www.colorado.edu/UCB/AcademicAffairs/ArtsSciences/physics/PhysicsInitiative/Physics2000/microwaves/standing_wave2.html
Physics 2000, and Martin Goldman. Physics 2000: Resonance. August 25, 2006. http://www.colorado.edu/UCB/AcademicAffairs/ArtsSciences/physics/PhysicsInitiative/Physics2000/microwaves/standing_wave2.html (accessed 29 June 2017).
Physics 2000, and Martin Goldman. Physics 2000: Resonance. 2006. 25 Aug. 2006. 29 June 2017 <http://www.colorado.edu/UCB/AcademicAffairs/ArtsSciences/physics/PhysicsInitiative/Physics2000/microwaves/standing_wave2.html>.
%0 Electronic Source %A Physics 2000, %A Goldman, Martin %D August 25, 2006 %T Physics 2000: Resonance %V 2017 %N 29 June 2017 %8 August 25, 2006 %9 text/html %U http://www.colorado.edu/UCB/AcademicAffairs/ArtsSciences/physics/PhysicsInitiative/Physics2000/microwaves/standing_wave2.html
Disclaimer: ComPADRE offers citation styles as a guide only. We cannot offer interpretations about citations as this is an automated procedure. Please refer to the style manuals in the Citation Source Information area for clarifications.