Column I | Column II | ||
---|---|---|---|
(a) | XX' | (i) | T-shape |
(b) | XX'3 | (ii) | Pentagonal bipyramidal |
(c) | XX'5 | (iii) | Linear |
(d) | XX'7 | (iv) | Square-pyramidal |
(v) | Tetrahedral |
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 :