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JEE PHYSICS MCQ: MAGNETISM AND MATTER
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A magnet performs 10 oscillations per minute in a horizontal plane at a place where the angle of dip is 45 and the total intensity is 0.707 CGS units. The number of oscillations per minute at a place where dip angle is 60 and total intensity is 0.5 CGS units will be
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Correct option: B
7
Option B (7) is correct because the number of oscillations is proportional to the square root of the horizontal component of Earth's magnetic field.
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