Question:medium
The moment of inertia of a solid sphere of radius $20cm$ about its diameter is same as that of a solid cylinder of same mass about its axis, then the radius of the cylinder in $cm$ is
The moment of inertia of a solid sphere of radius $20cm$ about its diameter is same as that of a solid cylinder of same mass about its axis, then the radius of the cylinder in $cm$ is
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Equate moments carefully when masses are same.
Updated On: Apr 24, 2026
- $3\sqrt{5}$
- $5\sqrt{5}$
- $2\sqrt{5}$
- $8\sqrt{5}$
- $7\sqrt{5}$
Show Solution
The Correct Option is D
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