a simple pendulam takes 42 sec.to complete 20 oscillation . what is its time period
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Answer:
No. of oscillations completed by the pendulum= 42
Time taken to complete 42 oscillation= 20 seconds
Time period= No. of oscillations completed/Time taken
Time period= 42/20
= 21/10 (cancelled by 2)
= 2.1
Time period= 2.1 seconds
Explanation:
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