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 mea xl.0wl7-su.p v bwb.hb b9cb8su5xa;.(tcf1rlx su+8e em*s tzrements of the same quantity which of the following can bc1+ stlr f; xauze* tm(xe.s85e 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 instrumentdlp2/yeci )6dv5at6g ation or consistently bad technique. Averaging repeated measurements will not chadle)/c g2t 6yd65i avpnge 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. Random 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