Which of the Following Measurements Has the Highest Precision

question 30

Multiple Choice

Which of the following measurements has the highest precision?

• A)the height of the classroom wall (around 300 cm) with uncertainty of 3 cm
• B)the depth of a canyon (around 1800 m) with uncertainty of 15 m
• C)the thickness of human hair (0.0001 m) with uncertainty of 0.00003 m
• D)the mass of 1 kg with the uncertainty of 0.005 g

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