Two bar magnets placed together in a vibration magnetometer take `3` seconds for `1` vibration. If one magnet is reversed, the combination takes `4` seconds for `1` vibration. Find the ratio of their magnetic moments.

Explanation

Given that, `T_(1)=3sandT_(2)=4s`
`M_(1)/M_(2)=(T_(2)^(2)+T_(1)^(2))/(T_(2)^(2)-T_(1)^(2))=(4^(2)+3^(2))/(4^(2)-3^(2))=(16+9)/(16-9)=25/7orM_(1)/M_(2)=3.57`