Published by:
CGP EDU Academic Team
Published on: September 12, 2026
A thin circular disc of mass 
and radius 
is rotating in a horizontal plane about an axis passing through its centre and perpendicular to its plane with angular velocity 
. If another disc of same dimensions but of mass 
is placed gently on the first disc co-axially, then the new angular velocity of the system is :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
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