A stopwatch A records the time for an event as 119.2 s
PHYSICS · Single correct · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
A stopwatch A records the time for an event as 119.2 s, while stopwatch B records 121 s. The accepted time is 120.0 s. Which stopwatch gives the smaller relative error?
(a) Both stopwatches give the same relative error
(b) Cannot be decided without knowing the least count of the stopwatches
(c) Stopwatch A
(d) Stopwatch B