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- Homework Statement
- what is the uncertainty of time taken?

- Relevant Equations
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I'm doing a lab report where I manually measure the time taken for a bifilar pendulum to do 10 oscillations. Is there a rule or a method that I should follow to calculate its uncertainty? Or is the uncertainty just an estimation of human reaction time and judgment?

I also need to know the uncertainty of 1/length. First I measured the bifilar pendulum with a ruler of 0.001 m increment so the length uncertainty is 0.001/2=0.0005 m. However, in my investigation, I need to know the uncertainty of 1/L where L is length. Is there also a rule to calculate the uncertainty of 1/L? Or does it follow the uncertainty of length itself (0.0005)?

Thank you so much for any help

I also need to know the uncertainty of 1/length. First I measured the bifilar pendulum with a ruler of 0.001 m increment so the length uncertainty is 0.001/2=0.0005 m. However, in my investigation, I need to know the uncertainty of 1/L where L is length. Is there also a rule to calculate the uncertainty of 1/L? Or does it follow the uncertainty of length itself (0.0005)?

Thank you so much for any help