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The diameter of a steel rod is written as 56.47 +_ 0.02 mm .what does it mean ?​
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The diameter of a steel rod is written as 56.47 +_ 0.02 mm .what does it mean ?​

User GrumP
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Answer:

The diameter of rod is 56.47(+-) 0.02 mm. It means that the instrument measuring the diameter 56.47 has instrumental error 0.02 mm.

User LearnToGrow
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