Double-slit Experiment

Double-slit Experiment

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Caption: Interference pattern observed in a modern-day replica of Thomas Young's double-slit experiment. A coherent beam from a Helium-Neon laser (632.8 nm wavelength) is incident on two 25-micron-wide slits spaced by 75 micron. The resulting diffraction pattern is observed at some distance away. This is a classic demonstration of the wave nature of the light. Digitally manipulated photograph.

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Keywords: coherent, colour, demonstration, diffract, diffraction, double, double-slit, education, educational, effect, experiment, fraunhofer, fringe, he, helium, interference, laser, light, monochromatic, ne, neon, optical, optics, phenomenon, physics, red, scientific, slit, visible, wave, wavelength

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