Question:
A dip needle vibrates in the vertical plane perpendicular to
Last updated: 6/27/2023
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A dip needle vibrates in the vertical plane perpendicular to the magnetic meridian The time period of vibration is found to be 4 s The same needle then allowed to vibrate in the horizontal plane and the time period is again found to be 4 s Then the angle of dip is 60 30 90 45