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. The moment of inertia about the z – axis is then
Text Solution
Verified by ExpertsThe correct answer is:
B
According to the theorem of perpendicular axes 
With the hole, 
and 
both decreases. Gluing the removed piece at the centre of square plate does not affect 
Hence, 
decreases overall.
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