A systematic error can be removed by
Correct answer: D. Recalibrating the instrument.
- A. Taking mean reading.
- B. Repeating the reading.
- C. Changing the surrounding.
- D. Recalibrating the instrument.
Explanation
Systematic errors are consistent biases in measurement that arise from flaws in the measurement system, such as miscalibrated instruments. To remove systematic errors, recalibration of the instrument is necessary, ensuring that it provides accurate readings. Taking mean readings or repeating measurements do not correct systematic errors because these methods only address random errors. Changing the surroundings may impact measurements but doesn't target the root cause of systematic errors.
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About Errors and Significant Figures
Measurement errors include random and systematic effects, absolute, fractional and percentage uncertainty, and the precision shown by significant figures. Questions apply rounding rules and uncertainty propagation in addition, subtraction, multiplication and division, while distinguishing accuracy from precision and uncertainty from an actual mistake.
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