A simple pendulum with string length 90 cm, takes 30 s to complete 20 oscillations. What is the time period of this pendulum?
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Answer:
Time taken to complete 20 oscillations =32s
Time taken to complete 1 oscillation =32/20s 1.6s
Time period of a pendulum is time taken by it to complete 1 oscillation.
Time period of pendulum is 1.6 seconds.
Explanation:
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