JEE Main 2004 Physics question
The length of a magnet is large compared to its width and breadth. The time period of its oscillation in a vibration magnetometer is 2 s. The magnet is cut along its length into three equal parts and three parts are then placed on each other with their like poles together. The time period of this combination will be
Answer: (2)
Solution
Taking the cuts across the length (three pieces each of length ): each piece has mass and moment . Stacking the three with like poles together gives total mass , length and magnetic
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account