Advertisements
Advertisements
Question
Why are the houses in Rajasthan painted white?
Advertisements
Solution
White colours are reflectors of heat. Thus, Rajasthan, a very hot state, has houses with their walls painted white so that most of the heat from the sun is reflected back to the atmosphere. This keeps the houses cool from inside.
RELATED QUESTIONS
Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.

Write true or false for a given statement.
Black surfaces are the poor absorbers of heat radiations.
State the direction of heat transfer by way of convection.
______ of heat does not require a medium.
Conduction of heat takes place through a ______ substance.
How does a fever get lowered by putting a cold compress on the forehead of a patient?
The handles of cooking utensils are made of ______.
Heat is the transfer of energy between two objects at different temperatures.
When ice changes into a liquid, it absorbs energy.
Take a sheet of paper. Draw a spiral on it as shown in Figure. Cut out the paper along the line. Suspend the paper as shown in Figure above a lighted candle. Observe what happens. Think of an explanation.

