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 measuremgn8ck 2 pb8;vaents of the same quanteqg6w12srdu y6nc 8pi ww7.*wity which of the following can be reducewgin8 wswpc*7y 6 2.w1eruq6dd?
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 ar, /4nblfj 0j(ped,ynwise due to faulty instrumentation or consistently bad technique. Averaging repf/j,0bl pn4 j( yden,weated 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