The identical solid sphere each having m...

The identical solid sphere each having mass `m` and diameter `d` are touching each other as shown in figure. Calculate ratio of moment of inertia about an axis (perpendicular to plane of paper) passing through point P ans B as shown in fingure.Given P is centroid of triangle ABC.

`13/23`

`11/19`

`7/9`

`13/11`

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