What is meant by a standard unit of measurement? Why is it necessary to have standard units of measurement? Name the Sl unit of length and its symbol.
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Answer:there are seven standard unit of measurement which are used to measure these seven basic terms.SI unit of length is metre whose symbol is m.
Explanation:to measure some basic quantities few measurement terms are given which are known as SI units.it is necessary to have these measurements units because without these we can not measure these basic quantities.SI unit of length is metre(m).
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