Determining acceleration due to gravity using a compound pendulum viva questions
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The aim of the experiment is to determine the acceleration due to gravity by using the compound pendulum.
Apparatus that is used are a knife edge , a bar pendulum and spirit level.
you also need a stop watch along with meter scale and telescope.
Precautions and discussions from the experiment we get.
We must ensure that the pendulum must oscillate in a vertical plane and we must also ensure that there is no rotational motion.
The amplitude must stick to 4 degree of the arc.
The time accuracy is noted using a stopwatch.
In the vicinity of the pendulum we must ensure that there is no air current.
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