Three identical spherical shells, each o...

Three identical spherical shells, each of mass m and radius r are placed as shown in figure. Consider an axis XX which is touching to two shells and passing through diameter of third shell:Moment of inertia of the system consisting of these three spherical shells about ' XX' axis is

`3mr^2`

`16/5mr^2`

`4mr^2`

`11/5mr^2`

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