why is the relative error of the time period of an oscilation is the least count of stopwatch /total time taken for certain number of oscillations , why is the least count of the instrument acting as the absolute error in the time period?when we are calculating the relative error in the time period of one oscillation why should we consider the total time taken which is variable with the increase or decrease in the number of oscilations ?

why is the relative error of the time period of an oscilation is the l

1.	why is the relative error of the time period of an oscilation is the least count of stopwatch /total time taken for certain number of oscillations , why is the least count of the instrument acting as the absolute error in the time period?when we are calculating the relative error in the time period of one oscillation why should we consider the total time taken which is variable with the increase or decrease in the number of oscilations ?
Answer» why is the relative error of the time period of an oscilation is the least count of stopwatch /total time taken for certain number of oscillations , why is the least count of the instrument acting as the absolute error in the time period? when we are calculating the relative error in the time period of one oscillation why should we consider the total time taken which is variable with the increase or decrease in the number of oscilations ?