Question

As we go from the magnetic equator towards the geographical south pole, the angle of the dip will become :

• A. More and more vertically downward and perpendicular to the surface at the magnetic south pole.
• B. More and more vertically upward and becomes perpendicular to the surface at the magnetic north pole.
• C. Less and less vertically downward and become horizontal at the magnetic south pole.
• D. Lesser and lesser vertically upward and become horizontal at the magnetic south pole.

Answer 1

The correct option is B More and more vertically upward and becomes perpendicular to the surface at the magnetic north pole.



As we move from equator to Geographical north pole (which is near the magnetic north pole), the vertical component of earth's magnetic field increases, and hence, angle of dip goes on increasing.

At the two magnetic poles, the magnetic needle rests vertically, such that the angle of dip at two poles is ${90}^{\circ }$.

On the magnetic equator, the magnetic needle rests horizontally, such that the angle of dip is $0^{\circ }$
.
Hence, option $\left(B\right)$ is the correct answer.