A student must record the length of a metal rod close to 50.0 cm
PHYSICS · Subjective · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
A student must record the length of a metal rod close to 50.0 cm. Two metre scales are available: Scale P has the smallest division 0.1 cm, while Scale Q has the smallest division 0.01 cm. Identify which scale yields the lower percentage uncertainty for this measurement and explain your choice in one sentence.