Published by:
CGP EDU Academic Team
Published on: August 22, 2026
A circular disc of radius 
has a hole of radius 
at its centre (see figure). If the mass per unit area of the disc varies as 
, then the radius of gyration of the disc about its axis passing through the center is:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
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