A student measures the time period of 100 oscillations of a simple pendulum four times
PHYSICS · Single correct · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
A student measures the time period of 100 oscillations of a simple pendulum four times. The data set is 90 s, 91 s, 95 s, and 92 s. If the minimum division in the measuring clock is 1 s, then the reported mean time should be: [Main 2016]
(1) 92±1.8 s
(2) 92±3 s
(3) 92±1.5 s
(4) 92±5.0 s