What is the speed of light
Answers
Explanation:
The speed of light in vacuum,commonly denoted C is a universal physical constant important in many areas of physics.It:s exact value is defined as 299792458m/s.
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Answer:
The speed of light in vacuum, commonly denoted c, is a universal physical constant important in many areas of physics. Its exact value is defined as 299792458 metres per second (approximately 300000 km/s, or 186000 mi/s).[Note 3] It is exact because, by international agreement, a metre is defined as the length of the path travelled by light in vacuum during a time interval of 1⁄299792458 second.[Note 4][3] According to special relativity, c is the upper limit for the speed at which conventional matter, energy or any signal carrying information can travel through space.
Sunlight takes about 8 minutes 17 seconds to travel the average distance from the surface of the Sun to the Earth.
Explanation:
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