Advertisements
Advertisements
प्रश्न
What type of clothes should we wear in summer ? Why ?
Advertisements
उत्तर
In summer, we should wear cotton clothes or white clothes because cotton absorbs sweat easily and exposes it to the air for evaporation. Evaporation of this sweat keeps our body cool. In addition, white colour reflects sunlight, keeping the heat away from the body.
APPEARS IN
संबंधित प्रश्न
Why does our palm feel cold when we put some acetone or petrol or perfume on it?
State three factors which affect the rate of evaporation of a liquid.
Why is cooling produced on evaporation of a liquid?
Give two applications of evaporation.
Explain why in hot summer days water remains cool in earthen pots.
What is evaporation ? State the various factors which affect evaporation.
During summer days, water kept in an earthen pot (pitcher) becomes cool because of the phenomenon of :
The amount of vapour in 1 cu.m. of air shows the ______.
Comment on the following statements:
Evaporation produces cooling.
The rate of evaporation ______ with rising temperature.
