Percentage Error ComparisonHardQuestion 30168
Question
Which measurement has higher accuracy: (a) 50.00 ± 0.01 cm or (b) 2.00 ± 0.01 cm?
- A(a)Correct
- B(b)
- CEqual accuracy
- DCannot determine
Correct answer
(a)
Explanation
Accuracy is judged by relative error: (a) 0.01/50.00 = 0.02%; (b) 0.01/2.00 = 0.5%. (a) has smaller relative error, hence higher accuracy.