A simple pendulum is being used to determine the value of gravitational acceleration \( g \) at ...

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A simple pendulum is being used to determine the value of gravitational acceleration \( g \) at a certain place. The length of the pendulum is \( 25.0 \mathrm{~cm} \) and a stop watch with \( 1 \mathrm{~s} \) resolution measures the time taken for 40 oscillations to be \( 50 \mathrm{~s} \). The accuracy in \( g \) is
(a) \( 2.40 \% \)
(b) \( 5.40 \% \)
(c) \( 4.40 \% \)
(d) \( 3.40 \% \)
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