A compass needle oscillates 20 times per minute at a place where the dip is 30^{\circ} and 30 times per minute where the dip is 60^{\circ}. The ratio of total magnetic field due to the earth at two places respectively is {4}/\sqrt{ {\x}}. The value of x is [12-Apr-2023 shift 1]

Magnetism and Matter

Section: Physics

Question : 16 of 73

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A compass needle oscillates 20 times per minute at a place where the dip is 30∘ and 30 times per minute where the dip is 60∘. The ratio of total magnetic field due to the earth at two places respectively is ‌

√x

. The value of x is

[12-Apr-2023 shift 1]

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