Arago spot en · NOUN
Etymology
Named after Dominique-François-Jean Arago, who performed an experiment demonstrating the spot's existence.
Meanings
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A bright point that appears at the centre of a circular object's shadow due to Fresnel diffraction.
The Arago spot played an important role in the discovery of the wave nature of light and is a common way to demonstrate that light behaves as a wave.
Forms
| Spelling | Features | Labels | Source |
|---|---|---|---|
| Arago spots | Number=Plur | lexicographic |