Freeze the charges!

Suppose the charge( +q ) and the hollow conducting sphere( charged to +q/2 ) are kept , as shown in the figure , for a while. Now, suddenly using a freeze gun we convert the conducting material of the sphere into a non-conducting material , so that the charge distribution on the sphere gets frozen like that !

Now, suppose , the +q charge is replaced by a -q/2 charge at the same position(at which the original +q charge was present).

Find the Dipole moment of the charge system.

This problem is Original

Note : q = 4/R (Numerically) and d = 2R Where R is the radius of the hollow sphere.

Hint : You don't need to know from where the freeze gun did come from :)