Question 33
Fractions, Decimals and ApproximationThe diameter of a metal rod is measured as 23.40cm to four significant figures. What is the maximum error in the measurement?
- A.0.05cm
- B.0.5cm
- C.0.045cm
- D.0.005cm
- E.0.004cm.
Show the answer and explanation
Answer: D (0.005cm)
Explanation
The last figure is in the hundredths place, so the reading can be off by at most half of 0.01cm, i.e. 0.005cm.