A magnet oscillating in a horizontal plane has a time period of 2 seconds at a place where the angle of dip is `30^(@)` and 3 seconds at another place where the angle of dip is `60^(@)`. The retio of resultant magnetic field at the two places is

A magnet oscillating in a horizontal plane, has a time period of 3 seconds at a place where the angle of dip is 30^(@) and 4 seconds at another place, where the dip is 60^(@) . Compare the resultant magnetic field at the two places.

A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30^(@) and 15 oscillations minute at a place where dip angle is 60^(@) . The ratio of total earth's magnetic field at the two places is

A magnet is suspended in such a way that it oscillates in the horizontal plane. It makes 20 oscillations per minute at a place where dip angle is 30^(@) and 15 oscillations minute at a place where dip angle is 60^(@) . The ratio of total earth's magnetic field at the two places is

A bar magnet, held horizontally, is set intom angular oscillations in earth's magnetic field. It has time periods T_(1) and T_(2) at two place, where the angles of dip are delta_(1) and delta_(2) respectively. Deduce an expression for the ratio of the resultant magnetic fields at the two places.

The vartical component of the earth's magnetic field is zero at a place where the angle of dip is

A small bar magnet A oscillates in a horizontal plane with a period T at a place where the angle of dip is 60^(@) . When the same needle is made to oscillate in a vertical plane coinciding with the magnetic merdian, its period will be