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 measurements of the same quantity whi* ifrmz7ia(kve6 .c1r ch of the foll6mrenmc70r 6t 8c eo+yowing can be reduc6 crm+6r80teeco yn7med?
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 ba ksbf ; v0zo1vw6 8a;mprj7pvs5s7z; 1roy; rad 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 corrjrv1oa0p1 afvskz; o;7v5 ;srwp;zbm 7y 8s6 rectly 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