(Q.)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 a distance 2R from the centre of the smaller sphere ,along the line joining the centres of the spheres , is zero .the ratio of ρ1/ρ2 can be a)-4 b)32/25 c)4 d)-32/25

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Q. Two non-conducting solid spheres of radii R and 2R, having uniform volume charge densities

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ρ_{1} / ρ_{2}

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