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Magnets A and B are geometrically similar but the magnetic moment of A is twice that of B. If T1 and T2 be the time periods of the oscillation when their like poles and unlike poles are kept together respectively, then $\frac{{T}_{1}}{{T}_{2}}$ will be

(a) 1/3                              (b) 1/2

(c) $1}{\sqrt{3}}$                          (d) $\sqrt{3}$