Maxwell’s theory : According to this theory, the energy is transferred from a hot body to cold body in the form of electromagnetic waves.
The electromagnetic waves possess the energy emitted by a body as a result of the change in electronic configuration of atoms or molecules. These electromagnetic waves transport energy like other waves and all electromagnetic waves travel with the speed of light.
The electromagnetic waves are characterised by their frequency (f) and wavelength Q), in a medium as
Where c is the speed of light in the medium.
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