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 mhy,73 is0bh m2 u-dm0essg5smv.fl 8ljtmw 6-easurements of the same quanc q3 1z1buw.xs8msz(otity which of the following can be reduced?x1wquo.zsb38sc1 ( z m
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 52os9tc-l4 i/ hsj1ialgztd7 consistently bad technique. Averaging repeated measurements will not change a zlgi 5j72t/ct4s -sd i o9hl1asystematic 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