cosine law


: either of two laws of radiation:
: the radiant flux emitted in a given direction from a given small area of a perfectly diffusing surface varies as the cosine of the angle of emission
: the irradiation by parallel rays falling on a surface varies as the cosine of the angle of incidence

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Dictionary Entries Near cosine law

Cite this Entry

“Cosine law.” Dictionary, Merriam-Webster, Accessed 4 Oct. 2023.

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