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An almost inertia-less rod of length l3....

An almost inertia-less rod of length l3.5 m can rotate freely around a horizontal axis passing through its top end. At the bottom end of the roa a small ball of mass m andat the mid-point another small ball of mass 3m is attached. Find the angular frequency (in SI units) of small oscillations of the system about the equilibrium position. Gravitational acceleration is g=9.8 m//s^(2).

A

`2.0 rad//s`

B

`2.5 rad//s`

C

`3.0 rad//s`

D

`3.5 rad//s`

Text Solution

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The correct Answer is:
C, D
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