LIST I | LIST II | ||
A. | Magnetic dipole moment | I. | Weber/$m^2$ |
B. | Magnetic permeability | II. | Am (Ampere m) |
C. | Pole strength | III. | Henry/m |
D. | Magnetic flux density | IV. | $Am^2$ (Ampere $m^2$) |
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :