Question

What are the three types of uncertainty in physics?

Answer 1

1. Systematic errors: Instrumental errors, errors in experimental techniques, and personal errors are systematic errors.
   These type of errors can occur in a definite pattern or we can say in one direction.
2. Random errors: Random errors are those errors, which occur irregularly and hence are random.
   These errors can occur randomly with respect to any sign (either positive or negative) and size ( either small or large).
3. Reading uncertainties: the scale-reading uncertainty is a measure of how well a scale can be read.
   For an analog scale, the uncertainty is ± half of the smallest scale division.
   For a digital scale, the uncertainty is ± 1 in the least significant digit displayed.