A simple demonstration of light refraction. Light travels at different speeds in different optical mediums,such as water and air. When the light from the pencil exits the water,its angle of incidence with the water is increased. Since the brain assumes that light travels in straight lines,this leads it to believe that the pencil,when in the water,is in a different place from its true position | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Southern Illinois University |
Taille de l’image : | 2236 px × 3378 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : |
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