Refraction
In optics, refraction is a phenomenon that often occurs when waves travel from a medium with a given refractive index to a medium with another at an oblique ang...
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In optics, refraction is a phenomenon that often occurs when waves travel from a medium with a given refractive index to a medium with another at an oblique angle. At the boundary between the media, the wave's phase velocity is altered, usually causing a change in direction. Its wavelength increases or decreases but its frequency remains constant.
In this example, 3 light rays will refract as it enters and leaves glass. A ray traveling along the normal (perpendicular to the boundary) will change speed, but not direction. Refraction still occurs in this case.
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In this example, 3 light rays will refract as it enters and leaves glass. A ray traveling along the normal (perpendicular to the boundary) will change speed, but not direction. Refraction still occurs in this case.
Read less
Sep, 2013Views
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