Grade 12Wave Motion
IN SECONDS PENDULUM,MASS OF BOB IS 30G.IF IT IS REPLACED BY 90G MASS.THEN ITS TIME PERIOD WILL BE
IN SECONDS PENDULUM,MASS OF BOB IS 30G.IF IT IS REPLACED BY 90G MASS.THEN ITS TIME PERIOD WILL BE
1 Answer
Arun
A seconds pendulum is a pendulum whose period is precisely two seconds; one second for a swing in one direction and one second for the return swing, a frequency of 1/2 Hz
It can be shown by calcuiation that in earth where g = 9.81 m/sec²
the length of the seconds pendulum is = 1 metre.
Hence replacement of the bob of mass 30g by a bob of 90g will not change the Time period,it will remain same as before i.e. 2s
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