Kognity IB Physics A.0 Measurements & Uncertainty (id: d9eac2f7a)

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本题目来源于试卷: Kognity IB Physics A.0 Measurements & Uncertainty，类别为 IBDP Physics

[单选题]
The variation of quan d9gdc:o+ya(cb :4atkew gr/: ,olw9ctity P as quantity Q varies is plotted. Theory states that P9wgbtc/4oakw,re:: l should vary linearly with Q.

A. The systematic errors are substantial.
B. The random errors are substantial.
C. The random errors and the systematic errors are insignificant.
D. The random errors and the systematic errors are substantial.


参考答案:  B


本题详细解析:
It is a mistake to believe that all graphs must go through the origin. In phkip* *ntn6hknsgo0 4 2ysics many do not. But the scatter of the points suggests there are significant random errors. The fact that the line of best fit does not go through the origin can only be taken of evide4op 2sgkn6*nht*0 iknnce of a systematic error only if there is good theoretical reason to believe that the line must go through the origin.