Class 12PhysicsMagnetism and MatterMagnetic Equipment's (Tangent galvanometer, Vibration magnetometer and Neutral point)
DifficultTwo magnets are placed with their like poles together,and they perform $12$ oscillations in $1$ minute. When they are placed with their unlike poles together,they perform $4$ oscillations in $1$ minute. What is the ratio of the magnetic moments of the magnets?
- A$3 : 1$
- B$1 : 3$
- C$3 : 5$
- D$5 : 4$
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