1.

Moment of inertia of a solid sphere of density rho and radius R is given by :

Answer»

<P>`(105)/(176)rhoR^(2)`
`(176)/(105)rhoR^(2)`
`(176)/(105)rhoR^(2)`
None of these

Solution :For solid sphere, `I=(2)/(5)MR^(2)`
Since M = volume `XX` density `=(4)/(3)PIR^(3)xxrho`
`therefore I=(2)/(5).(4)/(3)piR^(3).rho.R^(2)`
`=(8)/(15)piR^(5)rho=(8)/(15)xx(22)/(7)R^(5)P=(176)/(105)rhoR^(5)`


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