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 measuremhewnrno5 wd3) x(3i-en ugpt 2kq/+o)entn kp ea8e4mdc8577hjx s of the same quantity which of the following can a7j487x5eh pk ncedm 8be 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 instrumentymzd-;rt)c2zb0w 4 bzoz )h*aation or 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 calibrah*zw)4 y2abm zbdz c-t;z)or0ted. 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