Uncertainty in measurement can occur due to theI. limitation of instrumentsII. natural variationsIII. frequent errors
Correct answer: D. II and III.
- A. I only.
- B. III only.
- C. I and II.
- D. II and III.
Explanation
Uncertainty in measurement can arise from multiple sources. Natural variations (II) refer to the inherent variability in the system being measured, which can lead to different results even if the procedure is repeated exactly. Frequent errors (III) refer to mistakes that occur during the measurement process, which can be due to human error or instrument calibration issues. Although the limitation of instruments (I) can also cause uncertainty, the correct combination of factors listed in the options that lead to uncertainty are II and III. Therefore, the correct answer is Option D.
Last updated
Related questions
A student makes measurements from which she calculated the speed of sound as 321 ms-1 . She estimates that the result is accurate to +3% or -3% . Which of the following give results expressed to the appropriate number of significant figures?
A student performs an experiment in his college laboratory to determine the specific heat of water by electrical method. At the end of experiment, the graph that he drew betweentemperature (T) and time (t) was incorrect.Which of the following can be a source of error that caused inaccurate reading during his observation?
A systematic error can be removed by
In a champions' trophy of dart match, a player was given three chances to hit the centre target with darts. He managed to hit all the darts close to each other but away from the centre.The given case depicts that the player's shots were
Random errors can be reduced byI. taking zero correctionII. taking mean of several measurementsIII. comparing the instrument with a more accurate one