Question
Differentiate between conduction, convection and radiation.
| Conduction | Convection | Radiation |
| Material medium is required. | Material medium is required. | Material medium is required. |
| It is due to the temperature difference. | It is due to density difference. | It occurs from all bodies above 0 K. |
| Heat flows from higher to lower temperature. | Heat flows from lower to higher density. | Heat flows from higher to lower temperature. |
| It heats up the medium. | It also heats up the medium. | It does not heat up the medium. |
| It is a slow process. | It is also a slow process. | It propagates with speed of light. |
| It does not obey the laws of refraction and reflection. | It also does not obey the laws of refraction and reflection. | It obeys the law of refraction and reflection. |
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