A capillary tube of radius 'r' is immersed in water and water rises in it to a height 'h'. Mass of water in the capillary tube is $ 5 \times 10^{-3}kg$ . Another capillary tube of radius $ \bigg( \large\frac{r}{2} \bigg)$ is immersed in water. The mass of water that will rise in this tube is