In an experiment with simple pendulum, a time period measured was 40s for 20 vibrations when the length of the…

In an experiment with simple pendulum, a time period measured was 40s for 20 vibrations when the length of the pendulum was taken as 100cm. 1.If the least count of the stop watch is .15 and that of metre scale is .1cm, Calculate the maximum permissable error in the measurement of gravitation ‘g’? 2.If the actual value of ‘g’ at Delhi is 9.7915 m/s^2. Calculate the percentage error.
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