Question

Calculate the time period of a simple pendulum that takes 15 minutes to complete 10 oscillation

Answer 1

Time period is the time required to complete one oscillation.Therefore if 15 minutes is required to complete 10 oscillations, the time required to complete one oscillation

ie. Time period=15/10

=1.5 min

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Answer 2

Answer:90 seconds per oscillation

Explanation: Time period of the pendulum is the time taken by the pendulum to complete one oscillation .

The formula to calculate the time period is : TIME TAKEN divided by the NUMBER OF OSCILLATIONS

Therefore

time taken = 15 minutes ( 15*60= 900 seconds)

number of oscillations = 10

TIME PERIOD= 900/10 = 90

ANSWER : 90 seconds or 1 and a half minute .