how can we define metre as per to 9th standard??.....pls answer it....
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how can we define metre as per to 9th standard??.....pls answer it....
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Answer:
Metre is the fundamental unit of length in the metric system, equal to 100 centimetres or approximately 39.37 inches.
It is defined as the length of the path traveled by light in a vacuum during a time interval of 1/299792458 of a second.
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