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Two pendula of the same length oscillate...

Two pendula of the same length oscillate with amplitudes of 3 cm and 5 cm, respectively. The average time period noted for 3 trials for the first pendulum is found to be 2s, what will be the average time period for the second pendulum ?

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The average time period for the second pendulum is also 2 s. Because for a given length, the time period is independent of amplitude of oscillation.
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