A bob of mass ' \(m\) ' suspended by a thread of length \(\text{l}\) undergoes simple harmonic oscillations with time pe…

A bob of mass ' \(m\) ' suspended by a thread of length \(\text{l}\) undergoes simple harmonic oscillations with time period \(T\). If the bob is immersed in a liquid that has density \(\frac{1}{4}\) times that of the bob and the length of the thread is increased by \({\left(\frac{1}{3}\right)}^{rd}\) of the original length, then the time period of the simple harmonic oscillations will be

[JEE Main 2021, 31 Aug (Shift 2)]