Two lengths are (25.4 pm 0.1) cm and (12.6 pm 0.1) cm. Their difference is:

  1. (12.8 pm 0.05) cm
  2. (12.8 pm 0.2) cm
  3. (12.8 pm 0) cm
  4. (38 pm 0.2) cm
Answer

B) (12.8 pm 0.2) cm

For a sum or difference, add the absolute uncertainties. SLO P-11-A-06 · Application

Physics MCQ · More Physical Quantities and Measurement MCQs · Practise