The period of oscillation of a simple pendulum is given by 
where l is about 100 cm and is known to have 1 mm accuracy. The period is about 2 s . The time of 100 oscillations is measured by a stop watch of least count 0.1 s. The percentage error in g is
Text Solution
Verified by ExpertsThe correct answer is:
C
Here % error in l = 
and % error in T = 
\ \ % error in g = % error in l + 2(% error in T )
= 0.2 %
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