Question

define the term reflectivity and absorptivity. how are they related?​

Answer 1

Answer:

. physics a measure of the ability of a surface to reflect radiation, equal to the reflectance of a layer of material sufficiently thick for the reflectance not to depend on the thickness. Also called: reflectiveness the quality or capability of being reflective.

: the property of a body that determines the fraction of incident radiation absorbed by the body

Answer 2

Answer:

1. Absorptivity (α)

• is a measure of how much of the radiation is absorbed by the body.

    2. Reflectivity (ρ)

• is a measure of how much is reflected, and transmissivity (τ) is a measure of how much passes through the object.

The reflection of different wavelengths creates the perceived color of an object. Absorbed light is converted to energy and transmitted light moves through the material.

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