Question

the total time taken by a seconds pendulum to complete 20 oscillations ​

Answer 1

Answer:

We know that the time period of a seconds pendulum is T=2 sec. One second for a swing in one direction and one second for the return swing. Thus, time taken to complete one oscillation is 2 sec. Hence, time taken to complete 20 oscillations is 2×20=40 sec.

Explanation:

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Answer 2

Answer:

We know that the time period of a seconds pendulum is T=2 sec. One second for a swing in one direction and one second for the return swing. Thus, time taken to complete one oscillation is 2 sec. Hence, time taken to complete 20 oscillations is 2×20=40 sec.

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