Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Two coaxial discs, having moments of inertia 
and 
, area rotating with respectively angular velocities 
and 
, about their common axes. They are brought in contact with each other and thereafter they rotate with a common angular velocity. If 
and 
are the final and initial total energies, then 
is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
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