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JEE Advanced 2021 Full Test 2 Paper 2

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SECTION – B (Single Digit Integer Type)
This section contains 06 questions. The answer to each question is a Single Digit integer ranging from 0 to 9, both inclusive.
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Question : 7 of 54
 
Marks: +1, -0
The densities of two solid spheres A and B of the same radii R vary with radial distance r as ρA(r)=k(
r
R
) and ρB(r)=k(
r
R
)5, respectively, where k is a constant. The moments of inertia of the individual spheres about axes passing through their centres are lA and IB, respectively. If
IB
IA
=
n
10
, the value of n is
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