JEE Mains · Physics · STD 11 - 6. system of particles and rotational motion
The moment of inertia of a solid disc rotating along its diameter is 2.5 times higher than the moment of inertia of a ring rotating in similar way. The moment of inertia of a solid sphere which has same radius as the disc and rotating in similar way, is \(n\) times higher than the moment of inertia of the given ring. Here, \(\mathrm{n}=\)_________
Consider all the bodies have equal masses.
- A 10
- B 5
- C 4
- D 2
Answer & Solution
Correct Answer
(C) 4
Step-by-step Solution
Detailed explanation
\(\mathrm{I}_1=\frac{\mathrm{MR}_1^2}{4}, \mathrm{I}_2=\frac{\mathrm{MR}_2^2}{2}, \mathrm{I}_3=\frac{2 \mathrm{MR}_1^2}{5}\) According to problem…
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