The diagram shows a pendulum that oscillates between P and Q.
Which method is used to find the average period of oscillation for the pendulum?
1 )
Measure the time it takes to swing from P to Q.
Measure the time it takes to swing from P to Q to P 10 times and divide that time by 10.
3 )
Measure the time it takes to swing from P to Q to P 10 times and multiply that time by 10.
4 )
Measure the time it takes to swing from Q to P.
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