A metre scale reads the length of a rod as

PHYSICS · Subjective · A Level · Physics · Measurements and their errors · Measurements and their errors

Problem

A metre scale reads the length of a rod as 12.35 cm12.35\,\text{cm}, while the accepted (true) length is 12.50 cm12.50\,\text{cm}. Calculate: (i) the absolute error, (ii) the relative error, (iii) the percentage error. Give each answer to the correct number of significant figures.

Related theory

Browse the problem library