本题目来源于试卷: Tools & Inquiries G.4 Concluding & Evaluating，类别为 IB化学
[单选题]
The diameter of a cylindrical sample was measured usj-/2pvhg yaj: ing a vernie(dhxaw( 3w:6zct qa w2r caliper at three different points aq(xc wht:w6w 2dza3 (along the sample. The diameters measured were: 13.50 mm, 13.51 mm, 13.50 mm. The true diameter of the sample is 12.14 mm. What is the likely type of error, and how can the error be reduced?
A. Random error; repeating the experiment 3 more times
B. Random error; calibrating the vernier caliper
C. Systematic error; repeating the experiment 3 more times
D. Systematic error; calibrating the vernier caliper
参考答案: D
本题详细解析:
The readings are close topzc opod-6d c.j.;0h o each other but are all consistently far from the true value, indi 60zcoh-.oodpj;p c.dcating that the error is likely to be systematic.
Systematic errors cannot be corrected by repeating the experiment, and instead, the vernier caliper must be calibrated to correct the zero error.
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