File:EB1911 Vision - Dispersion of Light by a Lens.jpg
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EB1911_Vision_-_Dispersion_of_Light_by_a_Lens.jpg (763 × 257 pixels, file size: 48 KB, MIME type: image/jpeg)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:51, 15 September 2021 | 763 × 257 (48 KB) | Bob Burkhardt | {{Information |description = {{en|1=Aberration of Refrangibility.—When a ray of white light traverses on a lens, the different rays composing it, being unequally refrangible, are dispersed: the violet rays (see figure), the most refrangible, are brought to a focus at ''e'', and the red rays, less refrangible, at ''d''. If a screen were placed at ''e'', a series of concentric coloured circles would be formed, the central being of a violet, and the circumference of a red colour. The reverse eff... |
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