A pendulum swings repeatedly from P to Q and back to P.
A stop-watch is used to find the period of the pendulum.
Which method gives the most accurate value for the period?
1 )
timing how long it takes to go from P to Q
2 )
timing how long it takes to go from P to Q to P
timing how long it takes to go from P to Q to P 10 times, and dividing this time by 10
4 )
timing how long it takes to go from P to Q to P 10 times, and multiplying this time by 10
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