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A bar magnet of magnetic moment M(1) is ...

A bar magnet of magnetic moment `M_(1)` is suspended by a wire in a magnetic field. The upper end of the wire is rotated through `180^(@)`, then the magnet rotated through `45^(@)`. Under similar conditions another magnetic of magnetic moment `M_(2)` is rotated through `30^(0)`. Then find the ratio of `M_(1)&M_(2)`.

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