Reflection phase change

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Notion

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Science and technology

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What Wikipedia says

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. Such reflections occur for many types of wave, including light waves, sound waves, and waves on vibrating strings.

Excerpt from the Wikipedia article “Reflection phase change”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Peppergrower, CC BY-SA 3.0, via Wikimedia Commons.