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Define standard meter.

Answer
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Hint :To solve this question we have to know that, Meter is the standard spelling of the metric unit for length in nearly all English-speaking nations except the United States and the Philippines, which use meter.

Complete Step By Step Answer:
The standard meter is the length of the path travelled by the light in vacuum during a time interval of 1/299792 of a second. The meter is the length of the path travelled by light in vacuum during a time interval of 1/299792 of a second.
 1 m is about 39.37 inches. This is a bit more than one yard. There are 1609 meters in a statute mile. Prefix multipliers based on powers of 10 are used to convert meters to other SI units. For example, there are 100 centimeters in a meter. There are 1000 millimeters in a meter. There are 1000 meters in a kilometer.

Note :
We know that, The meter is the basic unit of length in the SI system of units. The meter is defined to be the distance light travels through a vacuum in exactly 1/299792458 seconds. An interesting effect of the definition of the meter this way is that it fixes the speed of light in a vacuum to the exact value of 299792458 m/s. The previous definition of the meter was one ten-millionth of the distance from the geographic North Pole to the equator, measured over the earth's surface in a circle running through Paris, France. Meters are abbreviated using a lowercase "m" in measurements.

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