Magnetism and Matter
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Question : 28 of 73
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A compass needle of oscillation magnetometer oscillates 20 times per minute at a place P of dip 30 ∘ . The number of oscillations per minute become 10 at another place Q of 60 ∘ dip. The ratio of the total magnetic field at the two places ( B Q : B P ) is :
[27-Jul-2022-Shift-2]
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