An experiment is performed to obtain the value of acceleration due to gravity by…
PHYSICS · Single correct · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
An experiment is performed to obtain the value of acceleration due to gravity g by using a simple pendulum of length L. In this experiment time for 100 oscillations is measured by using a watch of 1 second least count and the value is 90.0 seconds. The length L is measured by using a meter scale of least count 1 mm and the value is 20.0 cm. The error in the determination of g would be:
(1) 1.7%
(2) 2.7%
(3) 4.4%
(4) 2.27%