Advertisements
Advertisements
प्रश्न
Write true or false for a given statement.
Black surfaces are the poor absorbers of heat radiations.
विकल्प
True
False
Advertisements
उत्तर
False.
APPEARS IN
संबंधित प्रश्न
Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.

State the direction of heat transfer by way of convection.
Explain briefly the process of heat transfer by radiation.
Maximum heat is absorbed by a ______ coloured object.
The earth receives heat from the sun by ______.
Why are heaters fitted near the floor and air conditioners near the ceiling of a room?
Heat is the transfer of energy between two objects at different temperatures.
When ice changes into a liquid, it absorbs energy.
When a liquid boils, energy is absorbed.
Wrap a thin paper strip tightly around an iron rod. Try to burn the paper with candle while rotating the iron rod continuously. Does it burn? Explain your observation.
