Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A thin smooth rod of length 
and mass 
is rotating freely with angular speed 
about an axis perpendicular to the rod and passing through its centre. Two beads of mass 
and negligible size are at the centre of the rod initially. The beads are free to slide along the rod. The angular speed of the system, when the beads reach the opposite ends of the rod will be:-
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
Conservation of angular momentum about rotation axes:
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