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how to find v speed of light. Light travels at a blistering 670 million mph a speed thats immensely difficult to achieve and impossible to surpass. The Dutch scientist Christiaan Huygens who first did the arithmetic found a value for the speed of light equivalent to 131000 miles per second.
Speed of light c in a vacuum is constant 300000000 ms. In 1983 an international commission on weights and measures set the speed of light in a vacuum at the calculation we use today. The value of refractive index for glassn 15.
Light travels at a blistering 670 million mph a speed thats immensely difficult to achieve and impossible to surpass.
The speed of light in vacuum commonly denoted c is a universal physical constant important in many areas of physicsIts exact value is defined as 299 792 458 metres per second approximately 300 000 kms or 186 000 mis. The value of refractive index for glassn 15. In 1983 an international commission on weights and measures set the speed of light in a vacuum at the calculation we use today. Speed of light in vacuum c 3x 108.