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how to calculate the speed of light in a medium. Light is an electromagnetic wave which moves at a definite speed of eq3 times 108 eq ms in vacuum. To Einstein no one should ever measure a speed of light that is moving at 15 times the speed of light or at any other speed other than exactly the speed of light.
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The speed of light is equal to the distance light travels d divided by the time it takes t. If the light beam doesnt hit the border perpendicularly then at this border the angle changes. C dt.
C 299792458 x 10 8 ms.
The information we have is Speed of light in the medium v 2108ms Speed of light in the vacuum c 3108ms Now one must apply the formula of refractive index. One of the most important parameters that measures optical properties of a medium is the index of refraction. V in this equation is the speed of light in a medium having an index n and c represents the speed of light in vacuum. Meters per second ms.
