A bob of mass 'm' suspended by a thread ...

A bob of mass 'm' suspended by a thread of length I undergoes simple harmonic osillations with time peroid T. If the bob is immersed in a liquiod tha has density `(1)/(4)` times that of the bob and the length of the thread is increased by `1//3^(rd)` of the original length ,then the time period of the simple harmonic oscilltions will be :

`(3)/(2)T`

`(4)/(3)T`

`(3)/(4)`T

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