Converging lens focussing rays of light, animation. This is a biconvex lens. The paths of the rays are changed due to refraction, which occurs as the speed of light in glass is lower than the speed in air. The point at which the rays meet is called the focus, and the distance from the focus to the centre of the lens is called its focal length. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Parker, David |
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Eigentums-Rechte: | nicht erforderlich |
Länge: | 21 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |