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The length l of a simple pendulum is about 0.5m, and can be measured within 1mm. what accuracy is required in the measurement of periodic time T of 100 oscillations if the error in l and T are to produce equal percentage in the calculation of acceleration due to gravity (g)

  • physics -

    The length L measurement relative error is 1/500 = 0.2%
    g = L*(200 pi)^2/T^2
    The relative error in T should be 0.1% if its contribution to total error equals the relative error in L.

  • physics -

    thanks!!

  • physics -

    thanks alot...it was an easy method :)

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