differentiate between the three modes of heat transfer (conduction convection and radiation) quoting daily examples from each
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the difference between the three modes of heat transfer is as follows-
CONDUCTION-
- The heat transfer occurs between the object by direct transfer.
- the heat transfer takes place due to difference in temperature.
- heat transfer is a slow process.
- it does not follows the law of reflection or refraction.
- EXAMPLE- ice cooling down our hand
CONVECTION-
- The heat transfer takes place between the fluids.
- heat transfer occurs due to the difference in density.
- heat transfer is a fast process
- it does not follows law of reflection or refraction.
- EXAMPLE- hot air raising, falling and cooling
RADIATION-
- heat transfer occurs through electromagnetic waves without involving particles.
- The heat transfer occurs in all objects with a temperature greater than 0 K
- Heat transfer in radiation is the fastest.
- It follows the law of reflection and refraction
- EXAMPLE- heat from a light bulb
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