A magnet is suspended in the magnetic me...

A magnet is suspended in the magnetic meridian with an untwisted wire. The upper end of wire is rotated through 181° to deflect magnet by 37° from magnetic meridian. Now this magnet is replaced by another magnet and upper end of wire has to be rotated by 273° to deflect magnet by 53° from magnetic meridian. The ratio of magnetic moment of the two magnets respectively is

`3:4`

`1: 2 `

`4:7`

`5:8 `

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