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 measurement m4oqx4e h7q*kme-r1 vs of thv-5w, b md3djn te)+iie same quantity which of the following can be redvbi d 5tj)+m,i3wn de-uced?
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 instrumentatixxpyt /ee b1j;s-6 *tr1vsu:fon 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 sometimese1*1tprsjux6/ -v b;y x f:tes 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