Episode 1340
Plane of incidence
Sun, 2021-Jan-03 00:34 UTC
Length - 1:35
Direct Link
Welcome to random Wiki of the Day where we read the summary of a random Wikipedia page every day.
The random article for Sunday, 3 January 2021 is Plane of incidence.
In describing reflection and refraction in optics, the plane of incidence (also called the incidence plane or the meridional plane) is the plane which contains the surface normal and the propagation vector of the incoming radiation. (In wave optics, the latter is the k-vector, or wavevector, of the incoming wave.)
When reflection is specular, as it is for a mirror or other shiny surface, the reflected ray also lies in the plane of incidence; when refraction also occurs, the refracted ray lies in the same plane. The condition of co-planarity among incident ray, surface normal, and reflected ray (refracted ray) is known as the first law of reflection (first law of refraction, respectively).
This recording reflects the Wikipedia text as of 00:34 UTC on Sunday, 3 January 2021.
For the full current version of the article, see Plane of incidence on Wikipedia.
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This has been Justin Standard. Thank you for listening to random Wiki of the Day.
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