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 measure3i1 p8qb sld-vments of the(2 gyosj:x 1lk same quantity which of the following can be re j:12y xksl(ogduced?
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 consis ;8 ah hda(pn:d-sxxg+2yq9nph , 8qhgtently 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 too high and at other times too low – so averaging them will have the effect of reducin2 dyn hh8x9paq,ghxh +gn :d8s(-;qpag the random error. Hence A is correct.
| 
Post time 2024-8-21 21:38:19