Name the labelled parts A, B, C and D in the diagram given below.
- Stigma (A): The sticky surface at the top of the pistil which receives pollen grains.
- Style (B): The stalk that connects the stigma to the ovary.
- Ovary (C): The enlarged basal portion that contains ovules.
- Ovule (D): The structure inside the ovary where fertilisation occurs and seeds develop.
The resistance of a wire does not depend on its :
Absolute refractive indices of water and glass are $\frac{4}{3}$ and $\frac{3}{2}$ respectively. In which one of the two media is the speed of light more?