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 meare7gof0 k54ucw(k2 cz qkr j-4surement0m i vnb+kw9 hgj2;/kqc6dt) ms of the same quantity which of the following can be reduk;tmjg+9 v02mkd c 6)nbwihq/ced?
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 fyztjcr*+4 apfj/ fp pn( :phsok6+)2 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 t: (h+zcrf pn4fps pp o2*j j+/y6)aftkoo 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