PDF chapter test TRY NOW
Measurement of time period:
- Set up a simple pendulum as shown in the figure with a thread or string of length nearly one metre.
- Switch off any fans nearby.
- Let the bob of the pendulum come to rest at its mean position.
- Mark the mean position of the bob on the floor below it or on the wall behind it.
To measure the time period of the pendulum we will need a stopwatch. - Now, hold the bob gently and move it to one side, to set it in motion. [Note that the string should be in stretched position not in loose condition].
- The bob is now released and not pushed from its displaced position.
- The time is noted when the bob is at its mean position or instead its extreme positions.
- Measure the time the pendulum takes to complete \(20\) oscillations.
- Record your observations in the given table format.
- Repeat the process and note the observations.
Length of the string \(=\) \(100\) \(cm\)
Time taken for \(20\) oscillations (\(s\)) | Time period (\(s\)) |
\(20\) | |
\(40\) | |
\(60\) |
Is the time period of your pendulum nearly the same in all cases?
, the time period of your pendulum is in all cases.
Register for free to see more content