本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IBDP Physics
[单选题]
By averaging three mt9h vjq;:3ap;atx 4 ,6*kn 1uh qeauxjeasurements of the same quantisn5kyps 9/fpt:0a2 btty which of the following can beps9pb0 y2 stfk 5ta/:n reduced?
A. Random errors
B. Systematic errors
C. Random & systematic errors
D. Zero errors
参考答案: A
本题详细解析:
Systematic errors arise due to faulty instrumentation ortl+74v;v)gmh5lhvxof 9f-y x consistently bad technique. Averaging repeated measurements will not change a systematic bias. So B & C are incorrect. Zero errors are examples of systematic errors, where a the zero of an instrument is not correctly calibrated. So D is incorrect. Ra ht yh+vl-fx5x7)vm4 ;g vf9olndom errors will be sometimes too high and at other times too low – so averaging them will have the effect of reducing the random error. Hence A is correct.
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Post time 2024-8-21 21:38:19