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 quantity P as quantity Q varies ucc *xc;/ph4z2g hgi p18yy4yis plotted. 1;mtuoba.c3bda7 j ) aTheory states that P should vab 37tba1 cjou;)a.mad ry 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 s( l fuvbaa.xp72 7fb)that all graphs must go through the origin. In physics many do not. But the scatter of the points suggests therelf7a)b (aupb v.fs2x7 are significant random errors. The fact that the line of best fit does not go through the origin can only be taken of evidence of a systematic error only if there is good theoretical reason to believe that the line must go through the origin.