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Three identical spherical shells, each o...

Three identical spherical shells, each of mass `m` 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 inetia of the system cosisting of these three spherical shells about XX' axis is

A

`3mr^(2)`

B

`(16)/(5)mr^(2)`

C

`4mr^(2)`

D

`(11)/(5)mr^(2)`

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