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 measurewi68/qgbyv ys p ( u//6spc*yaments of the same quantity -uzg(a2v*djz which of the following can bed-u gva*2 jz(z 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 fau y06wf u68c*xdm +kzb3 itld1y*gp/talty instrumentation or consistently bad techniqxu8+py* 3fl /tit*6d0 1ydbc 6kwgzamue. 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. Hence A is correct.
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Post time 2024-8-21 21:38:19