MHT CET 2026 Physics question
Not in JEE Advanced syllabus
The periodic time of a magnet in vibration magnetometer is . If a magnet is replaced by another magnet whose moment of inertia is three times and magnetic moment is one-third of the original magnet, then time period of new magnet will be
Answer: (C)
Solution
In a vibration magnetometer . For the new magnet and , with the same horizontal field : \sqrt{\frac{3I}{(M/3)B_H}}$ =
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