Match List I with List II:
List I (Name of Vitamin)
Choose the correct answer from the options given below:
Match each vitamin with its deficiency disorder:
- Vitamin B12 → Pernicious anaemia (A–IV)
- Vitamin D → Rickets (B–III), a bone disorder due to calcium/phosphate imbalance
- Vitamin B2 (Riboflavin) → Cheilosis (C–I), characterized by cracked lips and inflammation at mouth corners
- Vitamin B6 (Pyridoxine) → Convulsions (D–II), due to its role in neurotransmitter synthesis
Correct match: A–IV, B–III, C–I, D–II
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 :