Physics - Rotation Question with Solution | TestHub

xx' is a diameter of the lower ring and is at distance R from the centre of each upper ring

Each ring about its own diameter: MR²/2

$I=3\times \frac{M{R}^2}{2}+2\times M{R}^2$

$I=\frac{7}{2}M{R}^2$

Answer: B