Prism dispersing light into spectrum
Numéro d’image : 11696396
| Prism demonstrating refraction and reflection effects. Beam of white light strikes the prism and is dispersed onto the opposite face. At this face,some of the light is refracted again,exiting the prism and forming the spectrum. The spectrum is a result of the different amounts of refraction of the different wavelengths of light present. In Isaac Newton's time,it was believed that white light was colourless,and that the prism itself produced the colour. Newton's experiments convinced him that all the colours already existed in the light in a heterogeneous fashion,and that "corpuscles" (particles) of light were fanned out because particles with different colours travelled with different speeds through the prism | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Parker, David |
| Taille de l’image : | 5044 px × 6484 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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