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JEE Main 12 Apr 2019 Paper 2 Solved Paper

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Question : 2

Total: 90

A solid sphere, of radius R acquires a terminal velocity v1 when falling (due t gravity) through a viscous fluid having a coefficient of viscosity η . The sphere is broken into 27 identical solid spheres. If each of these spheres acquires a terminal velocity, v2 , when falling through the same fluid, the ratio (

) equals

9
1
9
1
27
27

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