The period of oscillation of a simple pendulum is 
. Measured value of L is 10 cm know to 1 mm accuracy and time for 100 oscillations of the pendulum is found to be 50 s using a wrist watch of 1 s resolution. What is the accuracy in the determination of g?
Text Solution
Verified by ExpertsThe correct answer is:
D
Here , 
Squaring both sides, we get
The relative error in g is
Here, 
and 
The errors in both L and t are the least count errors
The percentage error in g is
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