A bob of mass 'm' suspended by a thread of length l undergoes simple harmonic oscillations with time period T. If the bob is immersed in a liquid that has density 1/4 times that of the bob and the length of the thread is increased by 1/3^(r)d of the original length, then the time period of the simple harmonic oscillations will be:-

Oscillations and Waves: JEE Main 2021 Physics question

JEE Main 2021 · 31 Aug, Evening shift · Q8206

JEE Main 202131 Aug, Evening shiftPhysicsMediumOscillations and Waves185× since 2002

A bob of mass 'm' suspended by a thread of length l undergoes simple harmonic oscillations with time period T. If the bob is immersed in a liquid that has density

{1 \over 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 oscillations will be :-

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