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A unifrom square plate has a small piece...

A unifrom square plate has a small piece `Q` of an irregular shape removed and glued to the centre of the plate leaving a hole behind [Fig.] The moment of inertia about the z-axis is than

A

increased

B

decresed

C

the same

D

changed in unpredicted manner.

Text Solution

Verified by Experts

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