Question:medium
A solid cylinder of mass 6 kg of length $l$ is inserted tightly into a hollow cylinder of outer radius 0.6 m and length $l$ without any air gap between them. If the moment of inertia of this setup about its own axis is $1.44\text{ kgm}^{2}$, then the mass of the hollow cylinder is
A solid cylinder of mass 6 kg of length $l$ is inserted tightly into a hollow cylinder of outer radius 0.6 m and length $l$ without any air gap between them. If the moment of inertia of this setup about its own axis is $1.44\text{ kgm}^{2}$, then the mass of the hollow cylinder is
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Logic Tip: The phrase "inserted tightly... without any air gap" is a classic physics problem indicator that you should treat the multiple components as a single geometric entity rather than calculating complex inner and outer radius dependencies individually.
Updated On: Apr 27, 2026
- 1 kg
- 3 kg
- 4 kg
- 2 kg
- 5 kg
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The Correct Option is D
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