The least count of a stopwatch is frac{1}{5} | vedclass

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(B) The least count of the stopwatch represents the absolute error in the measurement,denoted as $\Delta T = \frac{1}{5} \, s = 0.2 \, s$.The measured

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$0.8$

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(B) The least count of the stopwatch represents the absolute error in the measurement,denoted as $\Delta T = \frac{1}{5} \, s = 0.2 \, s$.The measured time for $20$ oscillations is $T = 25 \, s$.The percentage error in the measurement of time is calculated using the formula:$	ext{Percentage Error} = \left( \frac{\Delta T}{T} ight) 	imes 100 \%$.Substituting the values:$	ext{Percentage Error} = \left( \frac{0.2}{25} ight) 	imes 100 \% = 0.8 \%$.

The least count of a stopwatch is $\frac{1}{5} \, s$. The time of $20$ oscillations of a pendulum is measured to be $25 \, s$. The maximum percentage error in the measurement of time will be ..... $\%$

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