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 measurements of the same quantity ebjpqtxl z5gb+u98 87 which of the f9pvzc8(r(j7bimlbb36 c9vzvu5jm: rollowing can be redvj ( z3 cpm9r9ubc m75vbv:(ibjrl6z8uced?
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 or ks7:v1h.sp hz(u*mhw consistently bad technique. Averaging us7z1 :h(wv *hshkp.m 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. 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