
A dip circle is so placed that the magnetic needle in it is vertical. The circle is then rotated through θ° about a vertical axis and theangle of dip measured in this position is found to be θ°. Find the true value of the angle of dip at that place.
A dip circle is so placed that the magnetic needle in it is vertical. The circle is then rotated through θ° about a vertical axis and theangle of dip measured in this position is found to be θ°. Find the true value of the angle of dip at that place.



