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 mck2fg;1h ,usqe+ -hycegx r2pjqi ejpq,s-sc 9w-5f+3asurements of the same quantity which of the following can be ij x3,+-sqje-25qfg9 sp crp wreduced?
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 consistentao7 rvm4k 5pk6ly bad technique. Averaging repeated measurements will not change a systematic bias. So B & C are incorrect. Zero errors a54vakor7p k m6re 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.
| 
Post time 2024-8-21 21:38:19