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 measurements of the same quantity whic.hj4rr 2llh a)h of the following s ; 8q,)uhip sspj)tu9can be redushiu)su )pjp; 89,stqced?
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 temz5 dpbqjj t ;: /xb;ac2b,ayd82s/lkchnique. 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 otz jdab2:ms ;2 ytap;x5clkbd8 j/q,b/her 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