A thin rectangular bar magnet suspended freely has period of oscillation of 4 seconds…
Physics · JEE Main · NTA Exams — Magnetic Effects of Current and Magnetism
A thin rectangular bar magnet suspended freely has period of oscillation of 4 seconds. What will be period of oscillation if the magnet is broken into two halves; each having length half of original; and one piece is made to oscillate in the same field.
- 2 s
- 3 s
- 1 s
- 4 s
Answer
(A) 2 s
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