Hair of shaving brush cling together when it is removed from water due to

Hair of a shaving brush cling together when the brush is removed from water due to

Bunty was fond of painting. He observed that hairs of paint brush do not cling together when dry and even when dipped in water but form a fine tip when taken out of it. He was quite surprised to see it but found it very useful for doing neat and beautiful painting. He asked his elder sister Shanti, who was a science student of class XI, that why do hairs of a paint brush cling together when taken out of water. His elder sister explained him the reason nicely. (i) What are the values displayed by Bunty here? (ii) Why do the hairs of a paint brush cling together when taken out of water?\

Seeds swell when placed in water due to :

In root hair, water entres due to

When an electron is removed from an atom, its energy

Discuss the use of calogen in removing hardness from water