Arago spot
Код 3399680
- ISBN: 978-5-5086-2716-4
Код 3399680
High Quality Content by WIKIPEDIA articles! In optics, an Arago spot, Fresnel bright spot, or Poisson spot is a bright point that appears at the center of a circular object`s shadow due to Fresnel diffraction. This spot played an important role in the discovery of the wave nature of light (see history section below) and is a common way to demonstrate that light behaves as a wave for example in undergraduate physics laboratory exercises. The basic experimental setup is shown in the figure on the...
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