Question

Random errors are best minimized by

• A. Adjustment
• B. Repetition of observations
• C. Calibration of instruments
• D. Eliminating observer

Hint:

Measurement errors: \[ \boxed{ \begin{aligned} \text{Random errors} &\rightarrow \text{Reduced by repeated observations} \text{Systematic errors} &\rightarrow \text{Reduced by calibration} \end{aligned} } \]

Answer 1

The Correct Option is B

Step 1: Recall the nature of random errors. Random errors arise due to unpredictable variations in observations and cannot be completely eliminated.

Step 2: Determine how they are minimized. By repeating the observations several times and taking the average, the effect of random errors is significantly reduced. Hence, \[ \boxed{\text{Repetition of observations}} \] is the correct answer. Therefore, \[ \boxed{(B)} \] is the correct answer.