(0.26) According to the figure, mass per unit area of the plate,

But mass of each hole,

Since

Distance of the centre of a hole and centre of the plate

Using parallel axes theorem, the moment of inertia of a hole about the axis,

Moment of inertia of four holes about the -axis

Moment of inertia of the complete square plate,

Therefore, moment of inertia of the remaining portion about the -axis,

The required ratio

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