The least count of a stop watch is \( \frac{1}{5} \mathrm{~s} \). T...

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The least count of a stop watch is \( \frac{1}{5} \mathrm{~s} \). The time of 20
\( \mathrm{P} \)
oscillations of a pendulum is measured as \( 25 \mathrm{~s} \). The
W
maximum percentage in the measurement of time will be
(A) \( 0.1 \% \)
(B) \( 0.8 \% \)
(C) \( 1.8 \% \)
(D) \( 8 \% \)
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