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5 June, 12:50

What is the refraction index of a medium?

-the ratio of the velocity of light in the medium over the velocity of light in a vaccum

-the ratio of the velocity of light ina vacuum over a velocity of light in the medium

-the ratio of the angle of incidence over the angle of refraction

-the ration of the angle of refraction over the angle of incidence

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  1. 5 June, 16:39
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    the ratio of the velocity of light in the medium over the velocity of light in a vacuum
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