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what is the unit for speed of light. Youre right that what units we use sets what number we get for the speed of light. In the antiquated Imperial units it is approx.
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When studying light the unit for frequency is called the Hertz its symbol is Hz. Note that rounding errors may occur so always check the results. The fixed value of the speed of light in SI units results from the fact that the metre is now defined in terms of the speed of light.
250Speed of light 269813212200 Kilometres per hour.
Its exact value is defined as 299792458 metres per. Light velocity in vacuum is one of the basic physical constants. 250000Speed of light 26981321221014 Kilometres per hour. The SI unit of speed is the metre per second but the most common unit of speed in everyday usage is the kilometre per hour or in the US and the UK miles per hourFor air and marine travel the knot is commonly used.
