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Four point masses, each of mass m, are f...

Four point masses, each of mass m, are fixed at the corners of a square of side l. The square is rotating with angular frequency `omega`, about an axis passing through one of the corners of the square and parallel to its diagonal , as shown, Angular momentum about this axis is :

A

`ml^2 omega`

B

`ml^2 omega`

C

`3 ml^2 omega`

D

`2 ml^2 omega`

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