1.

pendulum is released from P. It takes 0.2 s to swing from P to Q and another 0.2 s from Q to R. The pendulum is at its lowest point at R. What is the frequency of pendulum?

Answer»

So time period for the pendulum to swing from extreme position to the center = 0.2 s + 0.2 s = 0.4 sec.

Time period = 4 * 0.4 = 1.6 sec.Frequency = 1/1.6 = 0.625 Hz

0.625. Hz is the correct answer of the given question



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