Question

Difference between absorbance and absorption coefficient

Answer 1

Answer:

Absorbance. ... The optical depth equals the absorbance times ln(10). The term absorption refers to the physical process of absorbing light, while absorbance does not always measure absorption: it measures attenuation (of transmitted radiant power).

Explanation:

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Answer 2

Difference between absorbance and absorbtion coefficient is :

Absorbance is a measure of the quantity of light absorbed by a sample. It is also known as optical density, extinction, or decadic absorbance. The property is measured using spectroscopy, particularly for quantitative analysis. Typical units of absorbance are called "absorbance units," which have the abbreviation AU and are dimensionless.

Where as

Absorption coefficient - a measure of the rate of decrease in the intensity of electromagnetic radiation (as light) as it passes through a given substance; the fraction of incident radiant energy absorbed per unit mass or thickness of an absorber; "absorptance equals 1 minus transmittance".

Absorption is a quantity of light absorbed where as absorption coefficient is rate.