Two bar magnets having same geometry wit...

Two bar magnets having same geometry with magnetic moments M and 2M, are firstly placed in such a way what their similar poles are same side then its time period of oscillation is `T_1`. Now the polarity of one of the magnet is reversed then time period of oscillation will be:-

`T_(1)ltT_(2)`

`T_(1)gtT_(2)`

`T_(1)=T_(2)`

`T_(2)=oo`

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