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

[单选题]
The variation of quantity P as oys c0a4 u x *4oaonx075(mpiaquantity Q varies is plotted. Theory stap (/lak*iip, hv0c/qktes that P should vary linearly with (a *v0ckhi l,/pki/qpQ.

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 mufl8vbk6 pwd- hn+0ucg , f4noe/5sdp;st 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 theorh4lednf80 s+;ufo p -,nbgkcwd/ p5v6etical reason to believe that the line must go through the origin.