Three measurements of the time for 20 oscillations of a pendulum give t_(1)= 39.6s, t_(2)= 39.9s and t_(3)= 39.5s The accuracy in the measurement is

Three measurements of the time for 20 oscillations of a pendulum give

1.	Three measurements of the time for 20 oscillations of a pendulum give t_(1)= 39.6s, t_(2)= 39.9s and t_(3)= 39.5s The accuracy in the measurement is
Answer» 39.6 sec 39.9sec 39.5 sec 39.7sec Answer :D