Exam-style question
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What is the main difference between random error and systematic error in measurements?.
- A.Random error is consistent and predictable, while systematic error varies unpredictably.
- B.Random error affects the precision of measurements, while systematic error affects the accuracy.
- C.Random error can be reduced by averaging, while systematic error cannot be eliminated by repeated measurements.
- D.Random error is caused by human mistakes, while systematic error is due to equipment malfunction.
Model answer
What a good answer should say
- Random error can be reduced by averaging, while systematic error cannot be eliminated by repeated measurements.
Explanation
Why this works
The correct option accurately distinguishes random error, which can be minimized through repeated trials, from systematic error, which persists regardless of the number of measurements taken. This understanding is crucial for evaluating measurement reliability.
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