MHT CET 2024 Physics question
An annular ring has mass 10 kg and inner and outer radii are 10 m and 5m respectively. Its moment of inertia about an axis passing through its centre and perpendicular to its plane is
Answer: (B)
Solution
For an annular ring (thick ring) of mass with radii and , the moment of inertia about the axis through the centre and perpendicular to its plane is . Substituting kg, m, m:
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