Questions
A uniform square plate has a small piece Q of an irregular shape removed and glued to the centre of the plate leaving a hole behind as shown in figure. The moment of inertia about the Z-axis is
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Correct option is B
In the given diagrams, when the smaIl piece Q removed and glued to the centre of the plate, the mass comes closer to the Z-axis, hence moment of inertia decreases.Similar Questions
One quarter sector is cut from a uniform circular disc of radius R. This sector has mass M. It is made to rotate about a line perpendicular to its plane and passing
through the centre of the original disc. Its moment of inertia about the axis of rotation is
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