Verifying Lambert’s law of radiation

VP5.5.1.3
Verifying Lambert’s law of radiation
Verifying Lambert’s law of radiation

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Description

The aim of the experiment P5.5.1.3 is to investigate the angular distribution of the reflected radiation from a diffusely reflecting surface, e.g. matte white paper. To the observer, the surface appears uniformly bright; however, the apparent surface area varies with the cosine of the viewing angle. The dependency of the luminous intensity is described by Lambert’s law of radiation:

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