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Take out a cooled bottle of water from the refrigerator and keep it on a table. After some time you notice droplets of water around it. Why?
Answer:
As the bottle was in the fridge it's surface is cold. We know that the air around us contains some water vapour.
When the cold surface of the bottle comes in contact with the water vapour present then the air condenses to form tiny droplets of water and we notice a puddle of water around the bottle.
