List-I | List-II |
A. Abscisic acid | I. Promotes female flowers in cucumber |
B. Ethylene | II. Helps seeds to withstand desiccation |
C. Gibberellin | III. Helps in nutrient mobilisation |
D. Cytokinin | IV. Promotes bolting in beet, cabbage etc |
The correct matches are:
Therefore, the correct answer is (3): A-II, B-I, C-IV, D-III.
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 :