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प्रश्न
Why are the houses in Rajasthan painted white?
उत्तर
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.
संबंधित प्रश्न
Give two examples each of conductors and insulators of heat.
No medium is required for transfer of heat by the process of ______.
Write true or false for a given statement.
Medium is necessary for the transfer of heat by radiation.
Write true or false for a given statement.
Liquids are heated by conduction and radiation.
Fill in the blank
A hot metallic piece is placed in tap water contained in a bucket. Heat will flow from _______ to _________
Fill in the blank
Heat transfer in solids is by ______
Give one example of heat transfer by radiation.
Maximum heat is absorbed by a ______ coloured object.
______ of heat does not require a medium.
Why are heaters fitted near the floor and air conditioners near the ceiling of a room?
