## Abstract

Figure I represents schematically the different regions of the spectrum of electromagnetic waves, corresponding to the different regions of wavelength λ and frequency
where c=velocity of light in vacuum=2.999 × 10
where

*ν*. These two quantities are related by$$c = \nu \lambda $$

(1)

^{8}m/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:$$h\nu = hc/\lambda $$

(2)

*h*=6.6 × 10^{-34}J.s is the Plank constant. A quantum of radiant energy is also called a*photon*## Keywords

Solar 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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## Copyright information

© D. Reidel Publishing Company 1980