The angle of dip on a given meridian,making an angle 30degree with the magnetic meridian is equal to 30degree. The true angle of dip at the given point

The angle of dip at the magnetic pole is

The angle of dip is the angle

The angle of dip at the magnetic equator is

The angle of dip in a plane at an angle of 30^@ with magnetic meridian is 45^@ .The value of true Dip is

The angle of dip at a place is delta . If the dip is measured in a plane makinng an angle theta with the magnetic merdian, the apparent angle of dip delta_(1) will be

The real angle of dip, if a magnet is suspended at an angle of 30^(@) to the magnetic meridian and the dip needle makes an angle of 45^(@) with horizontal, is:

A dip needle in a plane perpendicular to magnetic meridian will remain