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A uniform square plate has a small piece...

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 in figure. The moment of inertia about the z-axis is then,
.

A

Increases

B

Decreased

C

The same

D

Changed in unpredicated manner

Text Solution

Verified by Experts

The correct Answer is:
B
In the given diagrams, when the small piece Q removed and glued to the centre of the plate, the mass comes closer to the z-axis, hence, moment of inertia decreases .
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