Four spheres of radius r each and mass m are placed with their centres on the four corners of the square of side 'a'. The moment of inertia of system about an axis along one of sides of square is :

Four spheres of radius r each and mass m are placed with their centres

1.	Four spheres of radius r each and mass m are placed with their centres on the four corners of the square of side 'a'. The moment of inertia of system about an axis along one of sides of square is :
Answer» `(4)/(5)MR^(2)+2ma^(2)` `(8)/(5)mr^(2)+2ma^(2)` `(8)/(5)mr^(2)` `(4)/(5)mr^(2)+4ma^(2)` Answer :B

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Four spheres of radius r each and mass m are placed with their centres on the four corners of the square of side 'a'. The moment of inertia of system about an axis along one of sides of square is :

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