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Music online Fundamentals Explained

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Refraction effects are based upon The reality that light travels extra little by little in a very denser medium. The ratio with the velocity of light in air to its velocity inside the medium is called the refractive index on the medium for light of a selected colour or wavelength. https://opticians-near-me47908.tokka-blog.com/30106284/the-5-second-trick-for-glasses-store-near-me

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