Classroom optical bench. In this experiment a double convex 50 mm lens is compared with a 140 mm plano convex lens. The wooden optical bench allows fo

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Classroom optical bench. 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 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 an object needle. The image is focused by a lens onto a white metal receiving screen which can have a squared paper insert. Mirrors, object screens, diffraction objects and Young's slits can also be used in the setup.

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Size: 5760px × 5100px
Photo credit: © MARTYN F. CHILLMAID/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aperture, bench, carriages, comparing, convex, diode, double, emitting, experiments, focal, focus, image, length, lens, light, needle, object, optical, plano, projected, rail, receiving, scale, screen, setup, source