Categories > magnetism > Magnetic Equipment > A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30o and 15 oscillations per minute at a place where dip angle is 60o. The ratio of total earth's magnetic field at the two places is

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Question: A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30o and 15 oscillations per minute at a place where dip angle is 60o. The ratio of total earth's magnetic field at the two places is


1) $3\sqrt 3 :8$
2) $16:9\sqrt 3 $
3) $4:9$
4) $2\sqrt 3 :9$
Solution: Explanation: No Explanation
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