Test Academy | The period of oscillation of a simple pendulum is given by T = 2π√(l/g) where l is about 100 cm and is known to 1mm accuracy. The period is about 2s. The time of 100 oscillations is measured by a stop watch of least count 0.1 s. The percentage error in g is 0.1%, 1%, 0.2%, 0.8%

Question

The period of oscillation of a simple pendulum is given by T = 2π√(l/g) where l is about 100 cm and is known to 1mm accuracy. The period is about 2s. The time of 100 oscillations is measured by a stop watch of least count 0.1 s. The percentage error in g is

Options :

0.1%
1%
0.2%
0.8%

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