(e) A dry handkerchief gets wet at onceon dipping in water, but it takes longfor a wet handkerchief to dry.

The reason a dry handkerchief gets wet quickly when dipped in water is due to the process of absorption. The fabric of the handkerchief absorbs the water, filling up the spaces between its fibers. This happens quickly because the dry fibers readily absorb the water.

On the other hand, a wet handkerchief takes longer to dry because the process of evaporation is slower. The water in the handkerchief needs to gain enough energy to change from a liquid state to a gaseous state and evaporate into the air. This process is influenced by various factors such as temperature, humidity, and air movement. In a hot, dry, and windy environment, the handkerchief will dry faster compared to a cold, humid, and still environment.