Which statement is true?

  1. No measurement can be perfectly exact
  2. Uncertainty is the same as a mistake
  3. Digital meters have no uncertainty
  4. Repeating a reading removes all uncertainty
Answer

A) No measurement can be perfectly exact

Uncertainty is always present; a mistake (blunder) is different. SLO P-11-A-07 · Understanding

Physics MCQ · More Physical Quantities and Measurement MCQs · Practise