Question 12 Marks
Why does a mirror become moist and hazy when we blow air on it through our mouth ?
Answer
View full question & answer→The air that we blow out through our mouth is warm and the mirror is cold in comparison. The warm air that we breathe out contains water vapour. When this water vapour comes in contact with the cold mirror. it is turned into tiny droplets of water. These make the mirror moist and hazy.