direct relationship between absorbance and concentration

Question

For monochromatic radiation, the expression of the direct relationship between absorbance and concentration in the form: Abs = ebc (where: e = molar absorptivity, b= cell path length, and c = concentration in mol.L-1), is:

Select one:

a. Ilkovic's law.

b. suitable for double beam spectrophotometers only.

c. Beer's Law.

d. for use only when the light source is a tungsten filament lamp.

e. used for calculating %T.

Answer 1

This is known as Beer-Lambert Law or simply Beer's Law and it expresses the absorbance as a function of the concentration using the extinction coefficient (molar absorptivity) as a factor.

So the answer is C