`9.Two fixed solid spheres of charges Q and KQ are separated by a distance 6R. A charge -q is to be projectedalong the line joining their centres so that it can reach the surface of other solid sphere of charge KQ.QKQ-9 mVmin2R6R(1) If k = 4 find minimum velocity to be given.(ii) If we do not want to give any velocity what should be the minimum value of K?`

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