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Two nonconducting solid spheres of radii R and 2R, having uniform volume charge densities `rho_1 and rho_2`, respectively, touch each other. The net electric field at a distance 2R from the centre of the smaller sphere, along the line joining the center of the spheres is zero. The ratio `rho_1//rho_2` can be

A

`-4`

B

`-32/25`

C

`32/25`

D

`4`

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The correct Answer is:
B, D
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