Define angle of dip

If angle of dip shown by a dip circle at 30° with magnetic meridian is 60°, then the angle of dip shown by dip circle at 45° with magnetic meridian is

Define angle of repose. Is this angle equal to the angle of friction ?

A dip needle vibrates in the vertical plane perpendicular to the magnetic meridian. The time period of vibration is found to be 2 sec. The same needle is then allowed to vibrate in the horizontal plane and the time period is again found to be 2 seconds. Then the angle of dip is

If H=(1)/(sqrt3)V , then find angle of dip. (where symbols have their usual meaning)

Define angle of friction, angle of repose and obtain the relation for angle of repose (ie., theta _(g) = tan ^(-1) mu).

A dip circle lying initially in the magnetic meridian is rotated through angle theta in the horizontal plane. The ratio of tangent of apparent angle of dip to true angle of dip is

The original value of the angle of dip at a place is 45^(@) what will be the apparent dip angle on a plane inclined at 60^(@) with the magnetic meridian ?

If theta_1 and theta_2 be the apparent angles of dip observed in two vertical planes at right angles to each other, then the true angle of dip theta is given by

A dip circle is adjusted so that its needle moves freely in the magnetic meridian. In this position, the angle of dip ia 40^(@) . Now the dip circle is rotated so that the plane in which the needle moves makes an angle of 30^(@) with the magnetic meridian. In this position the needle will dip by an angle

Where on the surface of Earth is the angle of dip zero?