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Radiation Heat Transfer
Radiation is the only mode of heat transfer between two objects that are at different
temperatures if there is no material between them. However, it can also be present
along, and in parallel, with other modes of heat transfer such as conduction and
convection. For example, our bodies dissipate heat through convection and radiation
and we feel warm because of the radiation heat received from a re or from the sun.
Every object radiates heat to other objects in its surroundings and in turn receives
radiation energy from them. Net radiation heat transfer between any two objects
depends on their temperat ...