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

Two non-conducting solid spheres of radii R and 2R, having uniform volume charge densities p₁ and p₂ respectively, touch each other. The net electric field at a distance 2R from the centre of the smaller sphere, along the line joining the centre of the spheres is zero. The ratio p₁/p₂ can be