Two identical bar magnets are placed on above the other such that they are mutually perpendicular and bisect each other. The time period of this combination in a horizontal magnetic field is T. The time period of each magnet in the same field is [CPMT 2005]

• A.          \[\sqrt{2}\,T\]                
• B.          \[{{2}^{\frac{1}{4}}}T\]
• C.          \[{{2}^{-\frac{1}{4}}}T\]   
• D.          \[{{2}^{-\frac{1}{2}}}T\]