Question:medium
A solid sphere of radius \(r\) is revolving about one of its diameters with angular velocity \(\omega\). If it suddenly expands uniformly so that its radius increases to \(n\) times its original value, then its angular velocity becomes
A solid sphere of radius \(r\) is revolving about one of its diameters with angular velocity \(\omega\). If it suddenly expands uniformly so that its radius increases to \(n\) times its original value, then its angular velocity becomes
Show Hint
If no external torque acts, angular momentum is conserved:
\[
I\omega=\text{constant}
\]
Updated On: Apr 29, 2026
- \(\dfrac{\omega}{n^2}\)
- \(\dfrac{\omega}{n}\)
- \(n\omega\)
- \(2n\omega\)
- \(n^2\omega\)
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The Correct Option is A
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