Four stopwatch readings for a pendulum oscillation are 2.56 s, 2.48 s, 2.51 s and 2.55 s
PHYSICS · Single correct · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
Four stopwatch readings for a pendulum oscillation are 2.56 s, 2.48 s, 2.51 s and 2.55 s. What is the percentage error of the reading 2.48 s with respect to the mean value of the four readings?
(a) 0.45%
(b) 3.2%
(c) 1.8%
(d) 0.018%