Question

what is condensation?how it work.

Answer 1

Condensation is the process in which water vapour becomes liquid and it is the reverse of evaporation.
Condensation happens one or two way:
either the air is cooled ro its dew point or it becomes so saturated with water vapour that it cannot hold any more water.

hope it will help you

Answer 2

exactly it is a physical process in which a gas converts into its liquid state.
Examples:-
1.The mirror in the bathroom during a shower becomes foggy because warmer water vapor in the air hits the cooler surface of the mirror.
2.When you get in your car in the morning and are breathing warmer air, the warm air comes into contact with the cooler windshield and forms a foggy window.

all the best for your upcoming exams.
hope you understood the topic please rate me.