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

[单选题]
The variation of quantity P as quantity Q varies isssqovf 97e .d+ plottezjqh m9x k6oujzl93mn2: ru46d. Theory states that P should vary linearly with Q.9uuj6m no3:l 2qh4 m6z9jxrkz

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 g2it.8 ldpz5b hraphs must go through the origin. In physics 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 evidence of a systematic error only if there is good theoretical reas8i2.lhd5 bt pzon to believe that the line must go through the origin.