According to Beer - Lambert law A = E C L A stand for absorbance. It has the unit of _____?

Length

Concentration

Both A and B

It has no unit

Absorbance (A) is a logarithmic ratio of incident to transmitted light; hence, it is unitless.

In the Beer-Lambert law:

A=ε⋅C⋅L, only ε (molar absorptivity) carries units to balance the equation.