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what is speed of light formula. This article was most recently revised and updated by Adam Augustyn Managing Editor Reference Content. According to special relativity c is the maximum speed at which all energy matter and physical information in the universe can travel.
The speed of light in any mediumwhich is usually denoted by c is a physical constant important in many areas of physicsIt is denoted by c0 especially in vacuum medium although the symbol c can be used to refer to that in any medium. In the famous relativity equation E mc 2 the speed of light c serves as a constant of proportionality linking the formerly disparate concepts of mass m and energy E. Median response time is 34 minutes and may be longer for new subjects.
299 792 458 ms although for most calculations 300 10 8 ms is sufficient.
Use the information to find the value. 300000000 metres per second. The fact that cm is asked for in the problem allows us to use the cms value for the speed of light. The time it takes for the light from the Sun to reach the Earth is around 8 minutes.