Teaching HTET PGT Level 3 - 2024 Mock Test Physics Units, Dimensions and Measurements Accuracy, precision of instruments and errors in measurement
A simple pendulum is being used to determine the value of gravitational acceleration g at a certain place. The length of the pendulum is 25.0 cm and a stop watch with 1 s resolution measures the time taken for 40 oscillations to be 50 s. The accuracy in g is :
1
3.40%
2
2.40%
3
4.40%
4
5.40%