This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Reflection at fixed and free string ends. en Reflection of transverse wave on string at free and at fixed ends The red wave is mirror image of the incident wave own Pieter Kuiper Created with Mathematica Source code waveg Expg sinemovie TablePlot wavex wavex wavex wavex Pi Pi PlotRange PlotStyle Thick Mesh Range Pi MeshStyle