A phase change sometimes occurs when a wave is reflected, specifically from a medium with faster wave speed to the boundary of a medium with slower wave speed.[1][2] Such reflections occur for many types of wave, including light waves, sound waves, and waves on vibrating strings.[3]
^Cite error: The named reference hypRPC was invoked but never defined (see the help page).
^Cite error: The named reference hypSound was invoked but never defined (see the help page).
^Russell, Daniel A. "Reflection of Waves from Boundaries". Graduate Program in Acoustics. Pennsylvania State University. Retrieved 2021-05-12.
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