本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IB物理学
[单选题]
By averaging three me*fmfdkac6v; m a9z87 kasurt: c,63cm1meewns 6 ygements of the same quantity which of the following can ben ,yms16c cgt3m6e:we reduced?
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 consiste4 pbb * xfi 46q/-:dbu5)tcudtb tq1lxntly bad technique. Averaging repeated measurements will not change a systematic bias. So B & C a:4qub xb-b)df1/cqttl* i p b5utd46 xre 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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