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प्रश्न
What are the modes of heat transfer?
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उत्तर
There are three modes of heat transfer:
- Conduction: Conduction is a process in which heat is transferred from the hotter end of an object to its cooler end.
- Convection: The process of transference of heat through a fluid (liquid or gas) is called convection.
- Radiation: Radiation is a method of heat transfer that does not require a medium.
संबंधित प्रश्न
Give two examples each of conductors and insulators of heat.
Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.
Fill in the blank
Heat transfer in solids is by ______
Fill in the blank
Heat transfer in liquids and gases is by ________.
Select the correct alternative
If we add a lump of ice to a tumbler containing water,
Select the correct alternative
In the process of convection, heat travel
Select the correct alternative
The vacuum kept in between the walls of a thermos flask reduces the heat transfer by
______ of heat does not require a medium.
Conduction of heat takes place through a ______ substance.
Why is the outer coat of the penguins of Antarctica black?
