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 mea4 yy6c-xkk1p l:u pintc0j:v7 surements of the same quantity which1.oi, kcul ;bthb7hi1 of the following can be7kc ;,hbbuh 1oitli1. 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 instruc401m.p r a7rbk ngqej9r0c6ymentation or consistently bad technique. Averaging repeated mea9c6re 7rmgqb0.ap j0cy14rk nsurements 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 reducing the random error. Hence A is correct.
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Post time 2024-8-21 21:38:19