MCQ
If a brass bar is placed on a vibrating magnet, then its time period
- ADecreases
- ✓Increases
- CRemains unchanged
- DFirst increases then decreases
✓
Answer
Correct option: B.
Increases
b
(b)Because moment of inertia increases i.e. $T \propto \sqrt I $
(b)Because moment of inertia increases i.e. $T \propto \sqrt I $
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