Laser beam refracting

Laser beam refracting

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Caption: Laser beam refracting. When light is incident from the air on the acrylic block it refracts (bends) toward the normal to the surface. When light exits the block through the second surface it refracts away from the normal to the surface. The angles of incidence and refraction are related through the Snell's law. In this photograph a red (635 nm) beam from a diode laser is used to demonstrate the phenomenon.

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Keywords: acrylic, beam, block, coherent, colour, deflection, demonstration, education, educational, effect, experiment, geometric, laser, light, monochromatic, optical, optics, phenomenon, physics, prism, ray, rectangular, red, refract, refracted, refraction, refractive, scientific, slab, snell'ss law, visible

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