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Monica Bajwa
Asked: 2022-11-04T02:32:42+05:30 In:

The densitis of two solid spheres A and B of the same radii R very with radial distance `r as p_A(r ) = k ((r )/(R )) and p_B(r ) = k((r )/(R )^5,` respectively, where k is a constant . The moments of inertia of the inividual spheres about axes passing throgh their centres are `I_A and I_B` respectively. if `(I_B)/(I_A) = (n)/(10),` the value of n is

The densitis of two solid spheres A and B of the same radii R very with radial distance `r as p_A(r ) = k ((r )/(R )) and p_B(r ) = k((r )/(R )^5,` respectively, where k is a constant . The moments of inertia of the inividual spheres about axes passing throgh their centres are `I_A and I_B` respectively. if `(I_B)/(I_A) = (n)/(10),` the value of n is
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  1. Correct Answer – 6
    `I=int2/3rho4pir^(2)r^(2)dr`
    `I_(A)propint(r)(r^(2))(r^(2))dr`
    `I_(B)propint(r^(5))(r^(2))(r^(2))dr`
    `:. (I_(B))/(I_(A))=6/10`

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