本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IB物理学
[单选题]
By averaging three measurements omsg;4vn dnhs;e.mmh . u4*ql g,67 61vn onxtjf the same quantity which of the foll;u )98 gt7ivv jsbsuo(owing can be reduv7i)(8j9b tgss;uovuced?
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 s**)aec1ostgtechnique. Averaging repeated measurements will not change a *osa)gte1sc* 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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