Figure I represents schematically the different regions of the spectrum of electromagnetic waves, corresponding to the different regions of wavelength λ and frequency ν. These two quantities are related by
where c=velocity of light in vacuum=2.999 × 108m/s. Electromagnetic waves carry energy, which may be absorbed by matter, producing different effects. This absorption can occur only in multiples of a quantum of energy, proportional to the frequency of the radiaiton; thus for radiation of frequency ν, the value of the quantum is:
$$c = \nu \lambda $$
where h=6.6 × 10-34J.s is the Plank constant. A quantum of radiant energy is also called a photon
$$h\nu = hc/\lambda $$
KeywordsSolar Radiation Effective Temperature Greenhouse Effect Wave Radiation Black Body
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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