1.

Three ringseachof massM and radiusR are arranged as shown in the figure . The momentof inertia of the systemabout AB is (NAR_NEET_PHY_XI_P2_C07_E11_036_Q01.png" width="80%">

Answer»

`3 MR^(2)`
`3/2 MR^(2)`
`5 MR^(2)`
`7/2 MR^(2)`

SOLUTION :`I = (MR^(2))/2+ 2 [ 3/2 MR^(2) ] `
` = (MR^(2))/2 + 3MR^(2) = (7MR^(2))/2 `


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