ผลต่างระหว่างรุ่นของ "ผู้ใช้:Subpadon/การสะท้อน (ฟิสิกส์)"

==การสะท้อนของแสง==

[[Image:Kayaking Deep Fork Wildlife Refuge Oklahoma.jpg|right|thumb|220px|upright|Double reflection: The sun is reflected in the water, which is reflected in the paddle.]]

Reflection of light is either ''[[Specular reflection|specular]]'' (mirror-like) or ''[[Diffuse reflection|diffuse]]'' (retaining the [[energy]], but losing the image) depending on the nature of the interface. Furthermore, if the interface is between a dielectric and a conductor, the [[phase (waves)|phase]] of the reflected wave is retained, otherwise if the interface is between two dielectrics, the phase may be retained or inverted, depending on the [[index of refraction|indices of refraction]].{{Citation needed|date=June 2009}}

 

A mirror provides the most common model for specular light reflection, and typically consists of a glass sheet with a metallic coating where the reflection actually occurs. Reflection is enhanced in metals by suppression of wave propagation beyond their [[skin depth]]s. Reflection also occurs at the surface of [[transparency (optics)|transparent]] media, such as [[water]] or [[glass]].