Two spheres each mass M and radius R are connected with massless rod of length 2R . Then moment of inertia of the system about an axis passing through
Two spheres each mass M and radius R are connected with massless rod of length 2R . Then moment of inertia of the system about an axis passing through the centre of one of sphere and perpendicular to the rod will be
A. `(21)/(5)MR^(2)`
B. `(23)/(5)MR^(2)`
C. `(22)/(5)MR^(2)`
D. `(24)/(5)MR^(2)`
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Correct Answer - D
`I = (2)/(5)MR^(2)+(2)/(5)MR^(2)+M(2R)^(2)`
`=(4)/(5)MR^(2)+4MR^(2)=(24)/(5)MR^(2)`
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