The period of oscillation of a simple pendulum is given by
, Where
is about
known with an accuracy of
. This time is about
. The time up to
oscillations is measured with a stopwatch of at least
The percentage error in g is:
Or,
Or,
Here percentage error in is:
Or,
Again,
The Percentage error in T:
Now,
Percentage error in g = Percentage error in + 2(Percentage error in T)
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