Attenuation 15
Attenuation 15 : In physics, any process in which the flux density (or power, amplitude, intensity, illuminance, etc.) of a "parallel beam" of energy decreases with increasing distance from the energy source. Attenuation is always due to the action of the transmitting medium itself (mainly by absorption and scattering). It would not be applied to the divergence of flux due to distance alone, as described by the inverse-square law
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