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 measureim6d-ik:s m2r nhi ri85(e -npm rr4cwztcdu, sm3v0 jtn f:-8;ents of the same quantity which of the following can be reduced:u cr v43zsc8tw f;mnjdr-0t,?
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 tnmjhmwt r2*jq ,8 */ar.jcc h(o faulty instrumentation 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 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 red(2jn8/tm* .rj c*,c wma hqjhrucing the random error. Hence A is correct.
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Post time 2024-8-21 21:38:19