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how to measure speed of light in glass. The refractive index of air for visible light is about 10003 so the speed of light in air is about 90 kms 56 mis slower than c. 1 metersecond is equal to 00864 megametresday or 5003461444662E-9 speed of light glass.
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For example for visible light the refractive index of glass is typically around 15 meaning that light in glass travels at c 15 200 000 kms 124 000 mis. Introduction The index of refraction of a medium is a measure for how much the speed of light or other waves such as sound waves is reduced inside the medium. 1 speed of light glass 99350413882101 furlongssecond using the online calculator for metric conversions.
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1 metersecond is equal to 32808398950131 footsecond or 5003461444662E-9 speed of light glass. The answer is 15855012563256E-18. To measure the speed of light would require an external definition of what a meter is and since about the 1970s we dont have one. Speed of light glass furlongsecond.
