In this experiment a double convex 50 mm lens is compared with a 140 mm plano convex lens. The wooden optical bench allows for fairly precise experiments in the classroom and consists of a 1.5 meter rail on which carriages are placed against a millimetre scale. The light source is a focused light emitting diode that is bright enough to use without a blackout. The light is cast onto a white metal object screen of 75mm diameter which has a round aperture with a wire grid. The image is focused by a lens onto a white metal receiving screen which can have a squared paper insert. Mirrors, object needles, diffraction objects and Young's slits can also be used in the setup. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Chillmaid, Martyn F. |
Bildgröße: | 5760 px × 5364 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |