$A$ thin conducting spherical shell (center at $O$) having charge $Q_0$,radius $R$ and three point charges $Q_0$,$-2Q_0$,$3Q_0$ are kept at points $A$,$B$,and $C$ respectively as shown in the figure. Find the potential at any point on the conducting shell. (Potential at infinity is assumed to be zero)
- A$\frac{5KQ_0}{2R}$
- B$\frac{3KQ_0}{2R}$
- C$\frac{KQ_0}{3R}$
- DNone of these
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