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 :

Question

$(a)\;1.7 \%\qquad(b)\;2.7 \%\qquad(c)\;4.4 \%\qquad(d)\;2.27 \%$