Mathematics · Magnetism and Matter
A bar magnet is oscillating in Earth's magnetic field with a time period T. When its length is doubled (keeping width same) and its mass is quadrupled, the new time period becomes T1. The ratio T1 : T is:
- 11 : 2
- 24 : 1
- 32 : 1✓
- 41 : 4
Correct answer
2 : 1
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