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 measuremento: j/c6cxq- xcs of the same quantity which vcg ep-fa15h* of the following can be reducfphcg15 e va*-ed?
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 consistently bad techon, r87u;dn a6:d2o bysoi8l jnique. 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. 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.bn;i8 s o :joau87dl,2on6dry Hence A is correct.
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Post time 2024-8-21 21:38:19