The ratio of the magnitudes of the equatorial and axial fields due to a bar magnet of length \(5.0~\text{cm}\) at a distance of \(50~\text{cm}\) from its mid-point is:
(Given, the magnetic moment of the bar magnet is \(0.40~\text{Am}^{2}.\)${\mathrm{}}^{}$)
1. \(\frac{1}{2}\)
2. \(2\)
3. \(1\)
4. \(\frac{3}{2}\)

The figure shows a small magnetized needle P placed at a point O. The arrow shows the direction of its magnetic moment. The other arrows show different positions (and orientations of the magnetic moment) of another identical magnetized needle Q. Then: