Two point masses m and 4m are connected ...

Two point masses m and 4m are connected by a light rigid rod of length l at the opposite ends. Moment of inertia of the system about an axis perpendicular to the length and passing through the centre of mass is

`(5ml^2) /4`

`(4ml^2) /5`

`(4ml^2) /3`

`(4ml^2) /7`

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