Angle of dip is $90^o$ at
Poles
Equator
Both $(a) $ and $ (b)$
None of these
The lines joining the places of the same horizontal intensity are known as
Fill in the blank.
$(i)$ The declination is ...... at higher latitudes.
$(ii)$ The declination in India is ...... .
The north pole of the earth's magnet is near the geographical
At a certain place, the horizontal component of earth's magnetic field is $\sqrt 3 $times the vertical component. The angle of dip at that place is....$^o$
A magnetic needle is placed on a cork floating in a still lake in the northern hemisphere. Does the needle together with the cork move towards the north of the lake