Kognity IB Physics A.0 Measurements & Uncertainty (id: 92f2eca62)

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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 measuremen9e2e: kiyca l9boa)qh7l5:uo pc; 0ynts of the (fl(/a66v*prmag 0e1 g3zr hzwt3ksz same quantity which of the following can be ghkmptlawr e(g36/sf1 z03(r z zv6*areduced?

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 tg(ib65dd fmuq1ce. k y0)mwa5echnique. 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 reducing theyde(1m 6 fb.) ia5qkm0gdw5 cu random error. Hence A is correct.