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  • Solve this problem In a pendulum bar magnet is osciallating in the magnetic field with time period 'T' if its mass is increased by four times then its time period will be

In a pendulum bar magnet is osciallating in the magnetic field with time period  'T' if its mass is increased by four times then its time period will be

  • Option 1)

    4T

  • Option 2)

    2T

  • Option 3)

    T

  • Option 4)

    \frac{T}{}2

 

Answers (1)

T\;\alpha\;\sqrt{I}

By increasing mass by 4 times moment of Inertia also \uparrow by 4

 

Time Period of Torsional pendulum case -

T=2\pi \sqrt{\frac{I}{K}}

- wherein

I= moment of inertia

K= torsional constant

 

 

 


Option 1)

4T

This is correct.

Option 2)

2T

This is incorrect.

Option 3)

T

This is incorrect.

Option 4)

\frac{T}{}2

This is incorrect.

Posted by

subam

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