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JEE Advanced 2013 Paper 1

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Question : 11

Total: 60

Two non-conducting solid spheres of radii R and 2R, having uniform volume charge densities ρ1 and ρ2 respectively, touch each other. The net electric field at a distance 2R from the centre of the smaller sphere, along the line joining the centres of the spheres, is zero. The ratio

can be:

−4
−
32
25
32
25
4

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