Advertisements
Advertisements
प्रश्न
Select the correct alternative
The vacuum kept in between the walls of a thermos flask reduces the heat transfer by
पर्याय
conduction only
convection only
radiation only
conduction and convection
उत्तर
conduction and convection
APPEARS IN
संबंधित प्रश्न
Give two examples each of conductors and insulators of heat.
Stainless steel pans are usually provided with copper bottoms. The reason for this could be that ______.
Write true or false for a given statement.
Liquids are heated by conduction and radiation.
Select the correct alternative
If we add a lump of ice to a tumbler containing water,
Why is the freezing chest in a refrigerator fitted near its top?
Explain briefly the process of heat transfer by radiation.
Maximum heat is absorbed by a ______ coloured object.
What are the modes of heat transfer?
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.
