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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > 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 30∘ and 15 oscillations minute at a place where dip angle is 60∘. The ratio of total earth’s magnetic field at the two places is

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 30∘ and 15 oscillations minute at a place where dip angle is 60∘. The ratio of total earth’s magnetic field at the two places is

A magnetic needle vibrates in a vertical plane parallel to the magnetic meridian about a horizontal axis passing through its centre. Its frequency is n. If the plane of oscillation is turned about a vertical axis by 90° the frequency of its oscillation in vertical plane will be