List I | List II | ||
A | Pila | I | Flame Cells |
B | Bombyx | II | Comb Plates |
C | Pleurobrachia | III | Radula |
D | Taenia | IV | Malpighian tubules |
Match List-I with List-II.\[\begin{array}{|c|c|} \hline \text{List-I (Animal)} & \text{List-II (Breed)} \\ \hline \text{(A) Buffalo} & \text{(I) Sunandini} \\ \hline \text{(B) Cow} & \text{(II) White Leghorn} \\ \hline \text{(C) Poultry} & \text{(III) Toggenburg} \\ \hline \text{(D) Goat} & \text{(IV) Nili-Ravi} \\ \hline \end{array}\]Choose the correct answer from the options given below:
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 :