Teaching HTET PGT Level 3 - 2024 Mock Test Physics Units, Dimensions and Measurements Accuracy, precision of instruments and errors in measurement
Consider the following statements:
1. Precision shows how close the measured value is to the true value of the quantity.
2. Instrumental errors and personal errors are the sources of random errors.
3. Random errors are random with respect to the sign and shape of the quantity.
4. Absolute error is the magnitude of difference between individual value and the true value of the quantity
Which of the above statements are correct.
1
1), 3) and 4) only
2
2) only
3
3) and 4) only
4
3) only